NPPES file of Aug 9, 2026

Peyton Carter Morss-Walton, MD

Dermatology Physician · San Francisco, CA

Peyton Carter Morss-Walton, MD is a dermatology physician with a practice address in San Francisco, California, and NPI 1578149472, issued on Mar 22, 2021. Check the license (California A201948, 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
1578149472
Name
Peyton Carter Morss-Walton
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
A201948 CA
Self-reported in NPPES; status is on the state search
Practice location
450 Sutter St RM 830, San Francisco, CA 94108
Phone
(415) 393-9550
Enumerated
Mar 22, 2021
Record last updated
Sep 3, 2025
Fax
(415) 393-9556
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 450 Sutter St RM 830

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

  1. Maya Debbaneh, M.D.Dermatology Physician1861812950
  2. David Kim, M.D.Dermatology Physician1982086526

Verify Peyton Carter Morss-Walton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A201948
    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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17% more Medicare Part D claims than the average dermatology physician in 2024

936 Medicare Part D claims for 206 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Peyton Morss-Walton936
  2. Specialty average797

Most prescribed

  1. Ketoconazole184 claims
  2. Ammonium Lactate117 claims
  3. Triamcinolone Acetonide82 claims
  4. Hydrocortisone62 claims
  5. Mupirocin38 claims
  6. Tacrolimus38 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.

Peyton Carter Morss-Walton among 2,083 dermatology physician records in California

Peyton Carter Morss-Walton, MD is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 95% of them.

  • NPI issued2021 · 95% of these records are older, 3% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 70% of these records are
  • Record last updated2025 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in California

There are 2,083 dermatology physician records in California.

The 8 dermatology physician records with the nearest ZIP codes

  1. Rupa Badlani, M.D.San Francisco, CA 941081790001170
  2. Adrienne Barry, MD, PHDSan Francisco, CA 941081316475270
  3. Michael Burns, MDSan Francisco, CA 941081063455343
  4. Caren Campbell, MDSan Francisco, CA 941081417219114
  5. Maya Debbaneh, M.D.San Francisco, CA 941081861812950
  6. Beverly Epstein, MDSan Francisco, CA 941081811968605
  7. David Kim, M.D.San Francisco, CA 941081982086526
  8. Siong Lee, MDSan Francisco, CA 941081417932716

Common questions

What is Peyton Carter Morss-Walton, MD's NPI number?

Peyton Carter Morss-Walton, MD's National Provider Identifier (NPI) is 1578149472, issued on Mar 22, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Peyton Carter Morss-Walton, MD located?

The NPPES record lists a practice address at 450 Sutter St RM 830, San Francisco, CA, 94108. Phone: (415) 393-9550. Providers update this record themselves, so call before visiting.

How can I verify Peyton Carter Morss-Walton, MD's license?

NPPES lists California license number A201948, 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 Peyton Carter Morss-Walton, MD prescribe under Medicare Part D?

In 2024, Peyton Carter Morss-Walton, MD had 936 Medicare Part D claims for 206 beneficiaries; the average among dermatology physician prescribers was 797. 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.