NPPES file of Aug 9, 2026

Rex Scott Adamson, M.D.

Psychiatry Physician · Modesto, CA

Rex Scott Adamson, M.D. is a psychiatry physician with a practice address in Modesto, California, and NPI 1053416701, issued on Sep 14, 2006. Check the license (California G85915, 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
1053416701
Name
Rex Scott Adamson
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G85915 CA
Self-reported in NPPES; status is on the state search
Practice location
1878 E Hatch RD, Modesto, CA 95351
Phone
(209) 538-1496
Enumerated
Sep 14, 2006
Record last updated
Oct 1, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(209) 538-9421
Medicaid ID
00G859150 CA
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.
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Also registered at 1878 E Hatch RD

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

  1. Karlene Bert, NURSE PRACTITIONERNurse Practitioner1053511378
  2. Soo Chun, M.D.Psychiatry Physician1538278205
  3. Jevon Johnson, M.D.Psychiatry Physician1154512036

Verify Rex Scott 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 G85915    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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4.9 times the Medicare Part D claims of the average psychiatry physician in 2024

4,931 Medicare Part D claims for 114 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Rex Adamson4,931
  2. Specialty average1,000

Most prescribed

  1. Clozapine1,013 claims
  2. Olanzapine250 claims
  3. Lithium Carbonate214 claims
  4. Atenolol208 claims
  5. Risperidone171 claims
  6. Clonazepam158 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.

Industry payments in 2024: $422.78

4 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Rex Adamson$422.78
  2. Specialty average$4,954.93

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

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

All 8,673 in California → Every provider in Modesto →

Other psychiatry physician records in California

  1. Nancy Aaen, MDNapa, CA1609816669
  2. Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
  3. Mekabiz Abaian, MDSan Bernardino, CA1891090163
  4. Brenda Abarca, MDTorrance, CA1407485527
  5. Pilar Abascal, M.D.Los Angeles, CA1730528191
  6. Michele Abbasi, M.D.Westlake Village, CA1093940330
  7. Zohaib AbbasiMartinez, CA1013392224
  8. Sandy Abdelkedous, MDFresno, CA1306093109
  9. Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
  10. Ezzat Abdelmalek, M.DDana Point, CA1992828826

Common questions

What is Rex Scott Adamson, M.D.'s NPI number?

Rex Scott Adamson, M.D.'s National Provider Identifier (NPI) is 1053416701, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Rex Scott Adamson, M.D. located?

The NPPES record lists a practice address at 1878 E Hatch RD, Modesto, CA, 95351. Phone: (209) 538-1496. Providers update this record themselves, so call before visiting.

How can I verify Rex Scott Adamson, M.D.'s license?

NPPES lists California license number G85915, 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 Rex Scott Adamson, M.D. prescribe under Medicare Part D?

In 2024, Rex Scott Adamson, M.D. had 4,931 Medicare Part D claims for 114 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.