John Montgomery Yost, M.D.
Dermatology Physician · Redwood City, CA
John Montgomery Yost, M.D. is a dermatology physician with a practice address in Redwood City, California, and NPI 1336451137, issued on Jul 8, 2010. Check the license (California A131385, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Montgomery Yost
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A131385 CA
Self-reported in NPPES; status is on the state search - Practice location
- 450 Broadway St, Redwood City, CA 94063
- Phone
- (650) 721-7190
- Enumerated
- Jul 8, 2010
- Record last updated
- Sep 3, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141029000942); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2010
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 450 Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Chen, MDStudent in an Organized Health Care Education/Training Program1588452403
Verify John Montgomery Yost in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A131385Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% more Medicare Part D claims than the average dermatology physician in 2024
1,016 Medicare Part D claims for 541 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Triamcinolone Acetonide164 claims
- Ciclopirox116 claims
- Fluocinonide93 claims
- Clobetasol Propionate86 claims
- Mupirocin73 claims
- Fluorouracil71 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 practice group's MIPS final score for 2023 (Medicare payment program): 77.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,491.22
58 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- J Robert West MD IncPalm Springs, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Montgomery Yost among 2,083 dermatology physician records in California
John Montgomery Yost, M.D. 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 2010, is newer than 64% of them.
- NPI issued2010 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2010 · median 2006 among the 1,450 with a school on file
- Record last updated2014 · 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.
All 2,083 in California → Every provider in Redwood City → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Carol Chan, MDRedwood City, CA 940631669550208
- Molly Johnson, MDRedwood City, CA 940631093893638
- Ern Loh, M.D.Redwood City, CA 940631144450917
- Gabriel Molina, MDRedwood City, CA 940631083243786
- Cynthia Ng, MDRedwood City, CA 940631982782488
- Gloria Nguyen, M.D.Redwood City, CA 940631609166149
- Alison Rhein, MDRedwood City, CA 940631164418828
- Pallavi Sprau, MDRedwood City, CA 940631932738341
Common questions
What is John Montgomery Yost, M.D.'s NPI number?
John Montgomery Yost, M.D.'s National Provider Identifier (NPI) is 1336451137, issued on Jul 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is John Montgomery Yost, M.D. located?
The NPPES record lists a practice address at 450 Broadway St, Redwood City, CA, 94063. Phone: (650) 721-7190. Providers update this record themselves, so call before visiting.
How can I verify John Montgomery Yost, M.D.'s license?
NPPES lists California license number A131385, 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 Montgomery Yost, M.D. prescribe under Medicare Part D?
In 2024, John Montgomery Yost, M.D. had 1,016 Medicare Part D claims for 541 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is John Montgomery Yost, M.D.'s MIPS final score?
The 2023 MIPS final score is 77.9 of 100, reported for the practice group. 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.