Marc Massey, PA-C
NPI 1649680364 · Physician Assistant · San Bruno, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Massey, PA-C is a Physician Assistant provider in San Bruno, CA (NPI 1649680364).
Provider details
- NPI number
- 1649680364
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 57099 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 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
357 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 112 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 80 | $97 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 50 | $50 |
| Detection Test By Nucleic Acid for Multiple Types Influenza Virus87502 | 36 | $94 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $135 |
| Automated Urinalysis Test81003 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 92 | 77 |
| Prednisone | 60 | 58 |
| Amoxicillin | 29 | 29 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 22 | 19 |
| Ibuprofen | 19 | 19 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 16 | 14 |
| Azithromycin | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-05-02
- Last updated
- 2023-09-08
- Certified
- 2023-09-08
Frequently asked questions
- What is Marc Massey's NPI number?
- Marc Massey's National Provider Identifier (NPI) is 1649680364, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Massey's specialty?
- Marc Massey is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marc Massey located?
- Marc Massey's practice location on file with NPPES is 1310 El Camino Real Ste J, San Bruno, CA 94066-1305.
- What is Marc Massey's phone number?
- The practice phone number listed in the NPPES registry for Marc Massey is (650) 270-2395.
- Does Marc Massey accept Medicare?
- Marc Massey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Massey's NPI active?
- Yes — Marc Massey's NPI (1649680364) is active in the NPPES registry as of the last update on 2023-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.