Registry data as of Aug 27, 2026

Gregory Adamson, MD

Pediatric Cardiology Physician · Palo Alto, CA

Gregory Adamson, MD is a pediatric cardiology physician with a practice address in Palo Alto, California, and NPI 1013335124, issued on Apr 4, 2014. Check the license (California A140732, 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 recordas of Aug 27, 2026
1013335124
Name
Gregory Adamson
Credential
MD
Primary taxonomy
Pediatric Cardiology Physician 2080P0202X
License number
A140732 CA
Self-reported in NPPES; status is on the state search
Practice location
725 Welch RD, Palo Alto, CA 94304
Phone
(650) 497-8000
Enumerated
Apr 4, 2014
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.
Download card Updates feed

Also registered at 725 Welch RD

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

  1. Shayda Abadi, NPNurse Practitioner1316745540
  2. Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
  3. Alexandra Abbott, MDPediatrics Physician1760018675
  4. Steven Abboud, MDAnesthesiology Physician1619364908
  5. Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
  6. Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235

Verify Gregory Adamson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A140732
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Industry payments in 2024: $327.60

6 payments, mostly food and beverage; the largest payer was Medtronic, Inc. The 1,156 providers of this specialty with any payment received $2,864.57 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Adamson$327.60
  2. Specialty average$2,864.57

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

80 pediatric cardiology physician records list a practice address in Palo Alto

They are 80 of the 7,617 NPPES records with a practice address in Palo Alto, and 363 pediatric cardiology physician records in California.

Other pediatric cardiology physician records in California

  1. Ian Adatia, MB CHBSan Francisco, CA1427085299
  2. Joseph Ahdoot, MDPasadena, CA1841272697
  3. Nassiba Alami Laroussi, MDPalo Alto, CA1619498870
  4. Ryan Alanzalon, MDPalo Alto, CA1174882385
  5. Juan Alejos, M.D.Los Angeles, CA1518993914
  6. Claudia Algaze Yojay, MDPalo Alto, CA1326235458
  7. Hadeel Allam, MDSan Diego, CA1639789837
  8. Myriam Almeida-Jones, MDLos Angeles, CA1306141106
  9. Christopher Almond, MDPalo Alto, CA1326000324
  10. Mohammad Alnoor, M.D.Sacramento, CA1033505672

Common questions

What is Gregory Adamson, MD's NPI number?

Gregory Adamson, MD's National Provider Identifier (NPI) is 1013335124, issued on Apr 4, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Adamson, MD located?

The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.

How can I verify Gregory Adamson, MD's license?

NPPES lists California license number A140732, 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.

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) 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.