NPPES file of Aug 9, 2026

Elaine Wong, MD

Endocrinology, Diabetes & Metabolism Physician · Emeryville, CA

Elaine Wong, MD is an endocrinology, diabetes & metabolism physician with a practice address in Emeryville, California, and NPI 1932258258, issued on Jan 9, 2007. Check the license (California A85039, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1932258258
Name
Elaine Wong
Credential
MD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
A85039 CA
Self-reported in NPPES; status is on the state search
Practice location
5800 Hollis St, Emeryville, CA 94608
Phone
(510) 806-2100
Enumerated
Jan 9, 2007
Record last updated
Apr 16, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(510) 806-2557
Medicaid ID
00A850390 CA
Medicare enrollment
Enrolled (PECOS I20050711000922); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2002
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5800 Hollis St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Emily Birnbaum, FNPNurse Practitioner1194355446
  2. Grace Eng, MDEndocrinology, Diabetes & Metabolism Physician1871552679
  3. Tara Farah, MDFamily Medicine Physician1851829642
  4. Julia Fellows, PA-CPhysician Assistant1568970838
  5. Victoria He, PHARM.D.Pharmacist1508207671
  6. Cory Hillis, AUDAudiologist1275151979

Verify Elaine Wong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A85039
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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17% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

2,179 Medicare Part D claims for 318 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Elaine Wong2,179
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium286 claims
  2. Alendronate Sodium164 claims
  3. Ozempic123 claims
  4. Jardiance115 claims
  5. Atorvastatin Calcium100 claims
  6. Mounjaro81 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. University Healthcare AllianceMenlo Park, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Elaine Wong among 1,131 endocrinology, diabetes & metabolism physician records in California

Elaine Wong, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.

  • NPI issued2007 · 46% of these records are older, 42% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2002 · median 2003 among the 779 with a school on file
  • Record last updated2017 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in California

There are 1,131 endocrinology, diabetes & metabolism physician records in California.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Grace Eng, MDEmeryville, CA 946081871552679
  2. Nithya Mani, M.D.Emeryville, CA 946081932426368
  3. Clare Moynihan, MDEmeryville, CA 946081023339413
  4. Kristen Lavelle, MDOakland, CA 946091790273381
  5. Anna Shurter, M.D.Oakland, CA 946091649462516
  6. Wen-Yee Tsai, MDOakland, CA 946091952425803
  7. Audrey Arzamendi, M.D.Walnut Creek, CA 945981508159567
  8. Mark Christiansen, MDWalnut Creek, CA 945981821108218

Common questions

What is Elaine Wong, MD's NPI number?

Elaine Wong, MD's National Provider Identifier (NPI) is 1932258258, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Elaine Wong, MD located?

The NPPES record lists a practice address at 5800 Hollis St, Emeryville, CA, 94608. Phone: (510) 806-2100. Providers update this record themselves, so call before visiting.

How can I verify Elaine Wong, MD's license?

NPPES lists California license number A85039, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Elaine Wong, MD prescribe under Medicare Part D?

In 2024, Elaine Wong, MD had 2,179 Medicare Part D claims for 318 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.