NPPES file of Aug 9, 2026

John Gambol, M.D.

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician · Placentia, CA

John Gambol, M.D. is an undersea and hyperbaric medicine (emergency medicine) physician with a practice address in Placentia, California, and NPI 1255339826, issued on Jul 8, 2005. Check the license (California G87090, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255339826
Name
John Gambol
Credential
M.D.
Primary taxonomy
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician 207PE0005X
License numbers
G87090 CA
ME70844 FL
Self-reported in NPPES; status is on the state search
Practice location
1041 E Yorba Linda Blvd Ste 203, Placentia, CA 92870
Phone
(818) 709-8161
Enumerated
Jul 8, 2005
Record last updated
Dec 13, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(818) 709-8160
Medicaid ID
261062100 FL
Medicare enrollment
Enrolled (PECOS I20110607000248); accepts Medicare assignment
Medical or professional school
University Of Miami, Lm Miller School Of Medicine, 1993
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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Verify John Gambol in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G87090
    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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64% more Medicare Part D claims than the average undersea and hyperbaric medicine (emergency medicine) physician in 2024

613 Medicare Part D claims for 156 beneficiaries, against an average of 374 among the 112 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. John Gambol613
  2. Specialty average374

Most prescribed

  1. Ssd107 claims
  2. Gentamicin Sulfate69 claims
  3. Ciprofloxacin Hcl65 claims
  4. Doxycycline Hyclate39 claims
  5. Cefpodoxime Proxetil33 claims
  6. Amoxicillin-Clavulanate Potass29 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.

The MIPS final score for 2023 (Medicare payment program): 0 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $241.68

3 payments; by number, the most common kind was food and beverage; the largest payer was Urgo Medical North America, LLC. The 66 providers of this specialty with any payment received $444.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Gambol$241.68
  2. Specialty average$444.01

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

John Gambol among 11 undersea and hyperbaric medicine (emergency medicine) physician records in California

John Gambol, M.D. is one of 11 undersea and hyperbaric medicine (emergency medicine) physician records with a practice address in California. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Record last updated2018 · 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 207PE0005X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician providers in California

There are 11 undersea and hyperbaric medicine (emergency medicine) physician records in California.

The 8 undersea and hyperbaric medicine (emergency medicine) physician records with the nearest ZIP codes

  1. John Deacon, M.D.Santa Barbara, CA 931111477567923
  2. Samuel Miller, D.O.Santa Maria, CA 934541619066693
  3. Kenneth Kelly, M.D.San Diego, CA 921551730224908
  4. Andrew Carpenter, MDSan Diego, CA 921031437998648
  5. Sandra Hayes, MDSan Diego, CA 921031740431444
  6. William Toppen, M.D.San Diego, CA 921031215399407
  7. Gary Willard, M.D.Carlsbad, CA 920081588780373
  8. Russell Gray, MDFairfield, CA 945351427341015

Common questions

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

John Gambol, M.D.'s National Provider Identifier (NPI) is 1255339826, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John Gambol, M.D. located?

The NPPES record lists a practice address at 1041 E Yorba Linda Blvd Ste 203, Placentia, CA, 92870. Phone: (818) 709-8161. Providers update this record themselves, so call before visiting.

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

NPPES lists California license number G87090, 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 Gambol, M.D. prescribe under Medicare Part D?

In 2024, John Gambol, M.D. had 613 Medicare Part D claims for 156 beneficiaries; the average among undersea and hyperbaric medicine (emergency medicine) physician prescribers was 374. Part D covers Medicare prescriptions only.

What is John Gambol, M.D.'s MIPS final score?

The 2023 MIPS final score is 0 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.