
Being told to see an endocrinologist is the start of a process, not an appointment. A county patient, a Kaiser member and someone with an employer PPO can live on the same street and still take completely different routes to the same kind of specialist. Know your route before you start calling, and you'll avoid false starts.
We've verified the basic facts about Medi-Cal, Covered California and the LA County health system from official sources. We have not yet checked state rules on HMO and Medi-Cal managed-care referrals with the Department of Managed Health Care or the Department of Health Care Services. Until we do, this page tells you what to ask rather than what the rule is. Your plan's own documents are the authority.
Start with one call to your plan
Whatever your coverage, the member services number on your insurance card is the quickest way to learn the rules that apply to you. Ask these questions, and write down the answers, the date and the name of the person you spoke with.
- Do I need a referral from my primary care doctor to see an endocrinologist?
- Does the visit need prior authorization, and who requests it?
- Which endocrinologists or clinics near me are in network?
- How long does a referral stay valid, and how many visits does it cover?
- What will I pay for a specialist visit and for lab work?
Medi-Cal
Medi-Cal is California's Medicaid program. It gives free or low-cost coverage to people with limited income. You can apply at any time of year, either online or through Covered California (LA County DPSS). The program covers about 12 million Californians and was expanded starting in 2014 (PPIC).
If you have Medi-Cal, ask your plan or primary care clinic how specialist referrals work for you and which endocrinology clinics accept your coverage. If your care is through LA County's Department of Health Services, the medical-home model described next applies.
The LA County medical home
Los Angeles General Medical Center and Harbor-UCLA Medical Center are part of the LA County Department of Health Services. At DHS facilities, all care, including visits to specialists, is coordinated through the patient's medical home (LA General).
Both hospitals have endocrine services. USC's endocrinology division runs outpatient endocrine clinics at LA General twice a week, one with more of a pituitary focus (Keck School of Medicine of USC). Harbor-UCLA's endocrinology division lists reproductive endocrinology and intermediary metabolism and diabetes among its focus areas. In both cases the request starts with your medical home. If you're new to the system, LA General's main number is (323) 409-1000.
Covered California plans
Covered California is the state's health insurance marketplace, set up under the Affordable Care Act in 2014. It's the only place qualifying Californians can get federal financial help when buying private insurance. But it doesn't sell insurance or pay claims itself (Covered California).
That distinction matters for referrals. Network and referral rules belong to the insurer you picked through the marketplace, so questions about specialists go to that insurer's member services line. If seeing a particular endocrinology clinic matters to you, check that clinic against a plan's network before you enroll.
HMO plans
We haven't yet checked California's HMO referral rules with the state regulator, so we won't summarize them here. What we can tell you is what to ask. Call your plan and your primary care office. Find out who submits the endocrinology referral, whether prior authorization is needed, and how you'll be told it's approved.
Also ask whether your plan assigns you to a particular medical group, and whether that group keeps its own list of specialists. If it does, check the endocrinologist against the group's list, not just the plan's directory.
PPO plans
With a PPO, ask whether you can book with an endocrinologist directly or need a referral, and what you'll pay in and out of network. Confirm both the doctor and the location. Large systems see endocrine patients at many sites. UCLA Health lists seven outpatient locations, and Keck Medicine of USC has a Beverly Hills office as well as Keck Hospital of USC. So check the exact address, not just the system name.
Kaiser Permanente
Kaiser Permanente's Los Angeles Medical Center lists a combined Endocrinology/Diabetes/Rheumatology department (Kaiser Permanente). Members should start with their Kaiser care team and ask how an endocrinology referral works. If you're a member and want to see an endocrinologist outside Kaiser, ask Kaiser member services how that would be covered before you book. If you're not a member, check with Kaiser directly rather than assuming you can be seen.
| Coverage type | First call | Key question |
|---|---|---|
| Medi-Cal | Your Medi-Cal plan or primary care clinic | Which endocrinology clinics accept my coverage, and do I need a referral? |
| LA County DHS patient | Your DHS medical home | Can you refer me to endocrinology at LA General or Harbor-UCLA? |
| Covered California plan | The insurer named on your card | Is this endocrinologist in network, and is a referral required? |
| HMO | Plan member services and your primary care office | Who submits the referral, and how will I know it's approved? |
| PPO | Plan member services | Is this doctor, at this address, in network? |
| Kaiser Permanente | Your Kaiser care team | How do I get an endocrinology referral at the LA Medical Center? |
What your primary care doctor should send
A referral is a request from one doctor to another. The specialist's office uses it to decide whether, where and how soon to see you. A bare referral with a diagnosis code and nothing attached gives the office little to work with and may come back with questions.
Ask your primary care office to include:
- The reason for referral in plain words, and the specific question they want answered
- Recent lab results related to that question, with dates and reference ranges, such as thyroid blood tests or diabetes labs
- Earlier results for the same tests, so the specialist can see change over time
- Reports from relevant imaging, such as a thyroid ultrasound or bone density scan, and where the images are stored
- A current list of medications and supplements
- Relevant visit notes and a short summary of your history
- Your insurance details and any authorization or referral number
Before the referral goes out, call the endocrinology clinic's intake line and ask what it needs to accept a referral. If they want specific results before booking, pass that list to your primary care office. It saves a round trip.
If the referral is denied or bounced back
- Find out whyCall the specialist's office and ask exactly what was missing or why the referral was declined.
- Close the gapPass that answer to your primary care office and ask them to resend with the missing items.
- Check the plan sideIf the plan denied authorization, ask the plan for the reason in writing and what your options are.
- Keep a logNote dates, names and reference numbers for every call. It makes each follow-up faster.
Once you have a name, check the doctor
When you know which endocrinologist you'll see, confirm their California license with the Medical Board of California's License Verification search. Then confirm their Endocrinology, Diabetes and Metabolism certification with the American Board of Internal Medicine at abim.org/verify (ABIM). The home page walks through both checks. For a list of what to bring, see the first appointment guide.
Frequently asked questions
Do I need a referral to see an endocrinologist in Los Angeles?
It depends on your plan. Ask member services whether a referral or prior authorization is required. At LA County DHS facilities, specialist care is coordinated through your medical home.
How do I find an endocrinologist who accepts Medi-Cal?
Start with your Medi-Cal plan or primary care clinic and ask which endocrinology clinics accept your coverage. If you're a county patient, your DHS medical home coordinates specialist referrals, including to LA General and Harbor-UCLA.
Can Covered California tell me which endocrinologists are in my plan?
Covered California is a marketplace that doesn't sell insurance or pay claims. The insurer you chose through it sets the network and referral rules, so ask that insurer.
Can I apply for Medi-Cal at any time?
Yes. LA County's Department of Public Social Services says you can apply any time of year, online or through Covered California.
Can a Kaiser member see an endocrinologist outside Kaiser?
Ask Kaiser member services before booking. This guide hasn't verified Kaiser's rules on outside care, so get the answer from Kaiser directly.
Why would a referral be sent back?
Ask the specialist's office for the reason. Missing context is worth checking first: no stated question, no recent labs or no insurance details.
Sources
- Health care and Medi-Cal — LA County Department of Public Social Services
- The Medi-Cal Program — Public Policy Institute of California
- About Covered California — Covered California
- Patient Services — Los Angeles General Medical Center, LA County DHS
- Division of Endocrinology and Diabetes: Patient Care — Keck School of Medicine of USC
- Division of Endocrinology, Diabetes and Metabolism — Harbor-UCLA Medical Center, LA County DHS
- Endocrinology patient resources — UCLA Health
- Locations: Endocrinology — USC Department of Medicine
- License Verification — Medical Board of California
- Information for credentialers — American Board of Internal Medicine