NPPES file of Aug 9, 2026

Eric Seronick, D.O.

Rheumatology Physician · Santa Cruz, CA

Eric Seronick, D.O. is a rheumatology physician with a practice address in Santa Cruz, California, and NPI 1659802346, issued on Mar 23, 2017. Check the license (California 20A16680, 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
1659802346
Name
Eric Seronick
Credential
D.O.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
20A16680 CA
Self-reported in NPPES; status is on the state search
Practice location
2025 Soquel Ave, Santa Cruz, CA 95062
Phone
(831) 458-5577
Enumerated
Mar 23, 2017
Record last updated
Aug 11, 2022
Medicare enrollment
Enrolled (PECOS I20220803000218); accepts Medicare assignment
Medical or professional school
Lincoln Memorial University Medical Department, 2017
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.
Download card Updates feed

Also registered at 2025 Soquel Ave

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

  1. Farzana AbedFamily Nurse Practitioner1669932588
  2. Rachel Abrams, M.D.Family Medicine Physician1578542171
  3. Erin Agenjo Hohengarten, LCSWClinical Social Worker1376978791
  4. Bahar Aghighi, MDEndocrinology, Diabetes & Metabolism Physician1770562134
  5. Walter Alexander, M.D.Surgery Physician1386946606
  6. Timothy W Allari, MDInternal Medicine Physician1013996370

Verify Eric Seronick in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A16680
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

56% fewer Medicare Part D claims than the average rheumatology physician in 2024

871 Medicare Part D claims for 191 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.

  1. Eric Seronick871
  2. Specialty average1,978

Most prescribed

  1. Alendronate Sodium204 claims
  2. Prednisone177 claims
  3. Allopurinol122 claims
  4. Hydroxychloroquine Sulfate73 claims
  5. Methotrexate61 claims
  6. Colchicine56 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. Sutter Bay Medical FoundationSanta Cruez, CA

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

Eric Seronick among 926 rheumatology physician records in California

Eric Seronick, D.O. is one of 926 rheumatology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 88% of them.

  • NPI issued2017 · 88% of these records are older, 10% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2017 · median 2003 among the 641 with a school on file
  • Record last updated2022 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in California

There are 926 rheumatology physician records in California.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Brent Culver, MDSanta Cruz, CA 950621023086410
  2. Lester Miller, M.D.Santa Cruz, CA 950621053463935
  3. Alfred PetrocelliSanta Cruz, CA 950621588644025
  4. Matthew Reimert, M.D.Santa Cruz, CA 950621215269014
  5. Neharika Bhardwaj, MDSanta Cruz, CA 950651336609494
  6. Michelle Di Fiore, M.D.Santa Cruz, CA 950651790171072
  7. Thomas Burns, MDSanta Clara, CA 950511235216169
  8. Stephanie Chu, MDSanta Clara, CA 950511598842452

Common questions

What is Eric Seronick, D.O.'s NPI number?

Eric Seronick, D.O.'s National Provider Identifier (NPI) is 1659802346, issued on Mar 23, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Eric Seronick, D.O. located?

The NPPES record lists a practice address at 2025 Soquel Ave, Santa Cruz, CA, 95062. Phone: (831) 458-5577. Providers update this record themselves, so call before visiting.

How can I verify Eric Seronick, D.O.'s license?

NPPES lists California license number 20A16680, 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 Eric Seronick, D.O. prescribe under Medicare Part D?

In 2024, Eric Seronick, D.O. had 871 Medicare Part D claims for 191 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.