Frederick Watson, M.D.
NPI 1568450104 · Cardiovascular Disease Physician · San Mateo, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Watson, M.D. is a Cardiovascular Disease Physician provider in San Mateo, CA (NPI 1568450104).
Provider details
- NPI number
- 1568450104
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A48257 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
48 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 28 | $75 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 20 | $123 |
Typical Medicare-allowed amounts for these services range $75–$123 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 25 | 17 |
| Atorvastatin Calcium | 24 | 16 |
| Ezetimibe | 20 | — |
| Amlodipine Besylate | 17 | — |
| Losartan Potassium | 17 | — |
| Metoprolol Succinate | 13 | — |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-07
- Last updated
- 2025-10-21
- Certified
- 2025-10-21
Frequently asked questions
- What is Frederick Watson's NPI number?
- Frederick Watson's National Provider Identifier (NPI) is 1568450104, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Watson's specialty?
- Frederick Watson is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Watson located?
- Frederick Watson's practice location on file with NPPES is 50 S San Mateo Dr, San Mateo, CA 94401-3857.
- What is Frederick Watson's phone number?
- The practice phone number listed in the NPPES registry for Frederick Watson is (650) 652-8600.
- Does Frederick Watson accept Medicare?
- Frederick Watson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Watson's NPI active?
- Yes — Frederick Watson's NPI (1568450104) is active in the NPPES registry as of the last update on 2025-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.