Provider Profile
Marc K. Massey, PA-C
Unclaimed ProfileAbout Marc Massey
Marc K. Massey, PA-C is a physician assistant based in San Bruno, CA. According to Medicare claims data, Marc cared for 342 Medicare patients across 357 services. The services billed most often include new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (650) 270-2395
- Email not available
Practice Locations
1310 EL CAMINO REAL STE J
San Bruno, CA 94066
Procedures Most Often Billed to Medicare
357 services · 342 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
112 | More than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
80 | As often as other peers in Physician Assistant |
| Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | Lab test | 87635 |
50 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
36 | Less often than most peers in Physician Assistant |
| Detection test by nucleic acid for multiple types influenza virus | Lab test | 87502 |
36 | More often than most peers in Physician Assistant |
| Automated urinalysis test | Lab test | 81003 |
26 | As often as other peers in Physician Assistant |
| Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique | Lab test | 87651 |
17 | As often as other peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 1 related provider in 1 group
Common questions
What kind of doctor is Marc K. Massey?
Marc K. Massey is a physician assistant in San Bruno, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Marc K. Massey's address?
Marc K. Massey is listed at 1310 El Camino Real Ste J, San Bruno, CA 94066. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Marc K. Massey?
The number on file is (650) 270-2395. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Marc K. Massey's NPI number?
Marc K. Massey's National Provider Identifier is 1649680364. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Marc K. Massey been practicing?
Marc K. Massey has 12+ years experience. Registered with an NPI since 2014. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Marc K. Massey perform?
According to Medicare billing data, Marc K. Massey the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Marc K. Massey confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Marc K. Massey. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.