Marcus Parker, PA-C
NPI 1518337807 · Medical Physician Assistant · Baltimore, MD
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Parker, PA-C is a Medical Physician Assistant provider in Baltimore, MD (NPI 1518337807).
Provider details
- NPI number
- 1518337807
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- C05946 (MD)
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
10 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
14 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 14 | $120 |
Typical Medicare-allowed amounts for these services range $120–$120 (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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 97 | 55 |
| Atorvastatin Calcium | 95 | 52 |
| Amlodipine Besylate | 67 | 38 |
| Apixabanbrand: Eliquis | 51 | 21 |
| Metoprolol Tartrate | 48 | 24 |
| Rosuvastatin Calcium | 47 | 27 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-09-30
- Last updated
- 2026-05-23
- Certified
- 2026-05-23
Frequently asked questions
- What is Marcus Parker's NPI number?
- Marcus Parker's National Provider Identifier (NPI) is 1518337807, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Parker's specialty?
- Marcus Parker is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marcus Parker located?
- Marcus Parker's practice location on file with NPPES is 9000 Franklin Square Dr, Baltimore, MD 21237-3901.
- What is Marcus Parker's phone number?
- The practice phone number listed in the NPPES registry for Marcus Parker is (443) 777-7000.
- Does Marcus Parker accept Medicare?
- Marcus Parker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Parker's NPI active?
- Yes — Marcus Parker's NPI (1518337807) is active in the NPPES registry as of the last update on 2026-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.