NPPES file of Aug 9, 2026

John Peter Serra, M.D.

Emergency Medicine Physician · Carlsbad, CA

John Peter Serra, M.D. is an emergency medicine physician with a practice address in Carlsbad, California, and NPI 1215111380, issued on Dec 24, 2007. Check the license (California A108846, 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
1215111380
Name
John Peter Serra
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A108846 CA
Self-reported in NPPES; status is on the state search
Practice location
6260 EL Camino Real Ste 101, Carlsbad, CA 92009
Phone
(760) 448-6650
Enumerated
Dec 24, 2007
Record last updated
Feb 23, 2022
Medicare enrollment
Enrolled (PECOS I20091123000449); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 2004
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 6260 EL Camino Real Ste 101

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

  1. Vivian Carlton, PA-CPhysician Assistant1609029867
  2. Erin Zehntner, NPFamily Nurse Practitioner1629614482

Verify John Peter Serra in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A108846
    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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41% fewer Medicare Part D claims than the average emergency medicine physician in 2024

133 Medicare Part D claims for 98 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. John Serra133
  2. Specialty average226

Most prescribed

  1. Amoxicillin-Clavulanate Potass19 claims
  2. Hydrocodone-Acetaminophen18 claims
  3. Cephalexin12 claims
  4. Sulfamethoxazole-Trimethoprim12 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 3 group practices

  1. Ohana Urgent Care Group IncCarlsbad, CA
  2. Seven Star Hospital Associates IncHemet, CA
  3. United Medical DoctorsNewport Beach, CA

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

John Peter Serra among 7,751 emergency medicine physician records in California

John Peter Serra, M.D. is one of 7,751 emergency medicine 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 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 50% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2004 · median 2011 among the 4,560 with a school on file
  • Record last updated2022 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. William Hinrichs, M.D.Carlsbad, CA 920091053305870
  2. Kelsey Burson, DOCarlsbad, CA 920081609437136
  3. William Bowen, M.B.B.S.Del Mar, CA 920141952693467
  4. Long Nguyen, M.D.Del Mar, CA 920141538315981
  5. Debra Guiffre, M.D.Bonsall, CA 920031760672299
  6. Tamara Hoover, M.D.El Cajon, CA 920211104836519
  7. Daniel Huhn, MDEl Cajon, CA 920211285610618
  8. Jack Wolfe, M.D.El Cajon, CA 920211417055948

Common questions

What is John Peter Serra, M.D.'s NPI number?

John Peter Serra, M.D.'s National Provider Identifier (NPI) is 1215111380, issued on Dec 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John Peter Serra, M.D. located?

The NPPES record lists a practice address at 6260 EL Camino Real Ste 101, Carlsbad, CA, 92009. Phone: (760) 448-6650. Providers update this record themselves, so call before visiting.

How can I verify John Peter Serra, M.D.'s license?

NPPES lists California license number A108846, 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 John Peter Serra, M.D. prescribe under Medicare Part D?

In 2024, John Peter Serra, M.D. had 133 Medicare Part D claims for 98 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.