NPPES file of Aug 9, 2026

Erin Andrea Gross, M.D.

Obstetrics & Gynecology Physician · La Jolla, CA

Erin Andrea Gross, M.D. is an obstetrics & gynecology physician with a practice address in La Jolla, California, and NPI 1013175009, issued on May 27, 2008. Check the license (California A99544, 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
1013175009
Name
Erin Andrea Gross
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A99544 CA
Self-reported in NPPES; status is on the state search
Practice location
9350 Campus Point Dr, La Jolla, CA 92037
Phone
(800) 926-8273
Enumerated
May 27, 2008
Record last updated
Nov 14, 2025
Medicare enrollment
Enrolled (PECOS I20090728000718); accepts Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 2005
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 9350 Campus Point Dr

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

  1. Kelley Becherer, DPTOrthopedic Physical Therapist1306219472
  2. Harriet Bielawski, M.D.Family Medicine Physician1962474049
  3. Laurel Branch, MDGastroenterology Physician1912437617
  4. Catherine Burgess, PT, DPT, OCSSpecialist1205287687
  5. Michelle Cacho, PTPhysical Therapist1043802465
  6. John Carethers, M.D.Gastroenterology Physician1518048990

Verify Erin Andrea Gross in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99544
    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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2.0 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024

331 Medicare Part D claims for 112 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Erin Gross331
  2. Specialty average165

Most prescribed

  1. Estradiol105 claims
  2. Clobetasol Propionate55 claims
  3. Yuvafem21 claims
  4. Estring18 claims
  5. Fluconazole13 claims
  6. Triamcinolone Acetonide11 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).

Erin Andrea Gross among 5,088 obstetrics & gynecology physician records in California

Erin Andrea Gross, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.

  • NPI issued2008 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2005 · median 2004 among the 2,700 with a school on file
  • Record last updated2025 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

68 obstetrics & gynecology physician records list a practice address in La Jolla

They are 68 of the 3,648 NPPES records with a practice address in La Jolla, and 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Timothy Bilash, M.D., M.S.La Jolla, CA 920371437189545
  2. Seth Bulow, M.D.La Jolla, CA 920371174635320
  3. Chrysten Cunningham, DOLa Jolla, CA 920371265435606
  4. Pamela Deak, M.D.La Jolla, CA 920371316978554
  5. Maureen Farrell, M.D.La Jolla, CA 920371508842303
  6. Robert Gordon, M.D.La Jolla, CA 920371619944030
  7. Pratima Gupta, MDLa Jolla, CA 920371891749842
  8. Patrick Haggerty, MDLa Jolla, CA 920371245280841

Common questions

What is Erin Andrea Gross, M.D.'s NPI number?

Erin Andrea Gross, M.D.'s National Provider Identifier (NPI) is 1013175009, issued on May 27, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Erin Andrea Gross, M.D. located?

The NPPES record lists a practice address at 9350 Campus Point Dr, La Jolla, CA, 92037. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.

How can I verify Erin Andrea Gross, M.D.'s license?

NPPES lists California license number A99544, 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 Erin Andrea Gross, M.D. prescribe under Medicare Part D?

In 2024, Erin Andrea Gross, M.D. had 331 Medicare Part D claims for 112 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.