NPPES file of Aug 9, 2026

Heather Hofflich, DO

Endocrinology, Diabetes & Metabolism Physician · La Jolla, CA

Heather Hofflich, DO is an endocrinology, diabetes & metabolism physician with a practice address in La Jolla, California, and NPI 1598962102, issued on Jun 27, 2007. Check the license (California 20A8966, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598962102
Name
Heather Hofflich
Credential
DO
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
20A8966 CA
Self-reported in NPPES; status is on the state search
Practice location
8939 Villa LA Jolla Dr, La Jolla, CA 92037
Phone
(858) 657-8000
Enumerated
Jun 27, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 8939 Villa LA Jolla Dr

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

  1. Edward Brown, MDInternal Medicine Physician1942313200
  2. Melinda Chen, MDInternal Medicine Physician1942396197
  3. Carmella Fitzpatrick, LVNLicensed Vocational Nurse1477796894
  4. Courtney Hanson, MDInternal Medicine Physician1609004191
  5. Douglas Johnson, PH.D.Clinical Neuropsychologist1770788697
  6. Renu Singh, PHARM.D.Pharmacotherapy Pharmacist1124339627

Verify Heather Hofflich in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A8966
    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

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33% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

3,488 Medicare Part D claims for 400 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 65 claims were for opioids.

  1. Heather Hofflich3,488
  2. Specialty average2,630

Most prescribed

  1. Atorvastatin Calcium212 claims
  2. Levothyroxine Sodium192 claims
  3. Losartan Potassium172 claims
  4. Amlodipine Besylate152 claims
  5. Rosuvastatin Calcium133 claims
  6. Omeprazole99 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. Regents OF The University OF CaliforniaSan Diego, CA

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

Endocrinology, Diabetes & Metabolism Physician providers in California

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

Other endocrinology, diabetes & metabolism physician records in California

  1. Evan Abel, MDSanta Monica, CA1619067238
  2. Anita Abraham, M.D.Stockton, CA1558380337
  3. Sallie Adams, M.D.Roseville, CA1255342085
  4. Helen Adelberg, M.D.Encino, CA1093935447
  5. Yewande Adepoju, DOOroville, CA1467892984
  6. David Aftergood, MDBeverly Hills, CA1639259328
  7. Nidhi Agarwal, MDTorrance, CA1518387125
  8. Bahar Aghighi, MDSanta Cruz, CA1770562134
  9. Tyler Aguinaldo, MDBurlingame, CA1306811906
  10. Susan Ahern, D.O.Ventura, CA1508156597

Common questions

What is Heather Hofflich, DO's NPI number?

Heather Hofflich, DO's National Provider Identifier (NPI) is 1598962102, issued on Jun 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Heather Hofflich, DO located?

The NPPES record lists a practice address at 8939 Villa LA Jolla Dr, La Jolla, CA, 92037. Phone: (858) 657-8000. Providers update this record themselves, so call before visiting.

How can I verify Heather Hofflich, DO's license?

NPPES lists California license number 20A8966, 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 Heather Hofflich, DO prescribe under Medicare Part D?

In 2024, Heather Hofflich, DO had 3,488 Medicare Part D claims for 400 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), loaded Aug 27, 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 27, 2026.