John Yost, M.D.
NPI 1336451137 · Dermatology Physician · Redwood City, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Yost, M.D. is a Dermatology Physician provider in Redwood City, CA (NPI 1336451137).
Provider details
- NPI number
- 1336451137
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A131385 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
8,924 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 4,361 | $7 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 1,200 | $59 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,199 | $94 |
| Biopsy of Related Skin Growth, First Growth11102 | 465 | $98 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 393 | $132 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 164 | 122 |
| Ciclopirox Olaminebrand: Ciclopirox | 116 | 68 |
| Fluocinonide | 93 | 73 |
| Clobetasol Propionate | 86 | 50 |
| Mupirocin | 73 | 60 |
| Fluorouracil | 71 | 59 |
| Ciclopirox | 47 | 23 |
| Hydrocortisone | 39 | 35 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,491 across 58 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-07-08
- Last updated
- 2014-09-03
Frequently asked questions
- What is John Yost's NPI number?
- John Yost's National Provider Identifier (NPI) is 1336451137, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Yost's specialty?
- John Yost is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is John Yost located?
- John Yost's practice location on file with NPPES is 450 Broadway St, Redwood City, CA 94063-3132.
- What is John Yost's phone number?
- The practice phone number listed in the NPPES registry for John Yost is (650) 721-7190.
- Does John Yost accept Medicare?
- John Yost is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Yost's NPI active?
- Yes — John Yost's NPI (1336451137) is active in the NPPES registry as of the last update on 2014-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.