Marcus Parker, PA-C
Medical Physician Assistant · Baltimore, MD
Marcus Parker, PA-C is a medical physician assistant with a practice address in Baltimore, Maryland, and NPI 1518337807, issued on Sep 30, 2015. Check the license (Maryland C05946, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marcus Parker
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- C05946 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9000 Franklin Square Dr, Baltimore, MD 21237
- Phone
- (443) 777-7000
- Enumerated
- Sep 30, 2015
- Record last updated
- May 23, 2026
- Medicare enrollment
- Enrolled (PECOS I20151208002701); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 871 in Maryland → Look up another NPI →
Also registered at 9000 Franklin Square Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marcus Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C05946Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% fewer Medicare Part D claims than the average medical physician assistant in 2024
868 Medicare Part D claims for 387 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Metoprolol Succinate97 claims
- Atorvastatin Calcium95 claims
- Amlodipine Besylate67 claims
- Eliquis51 claims
- Metoprolol Tartrate48 claims
- Rosuvastatin Calcium47 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Medstar Heart Institute LLCBaltimore, MD
- Medstar Medical Group II LLCGlen Burnie, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marcus Parker among 871 medical physician assistant records in Maryland
Marcus Parker, PA-C is one of 871 medical physician assistant records with a practice address in Maryland. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 70% of them.
- NPI issued2015 · 70% of these records are older, 25% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2015 · median 2012 among the 469 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Maryland
There are 871 medical physician assistant records in Maryland.
All 871 in Maryland → Every provider in Baltimore → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Stephen Bonning, PA-CBaltimore, MD 212371558356006
- Sara Canada Guy, PA-CBaltimore, MD 212371073818316
- John Givler, PA-CBaltimore, MD 212371629386222
- Allyson Gordon, PABaltimore, MD 212371336232966
- Kathy Gunning, PABaltimore, MD 212371528118619
- Stefan Hannevig, PA-CBaltimore, MD 212371790039386
- Mary Jackson, PA-CBaltimore, MD 212371720216203
- Tanya Jones, P.A.Baltimore, MD 212371215996905
Common questions
What is Marcus Parker, PA-C's NPI number?
Marcus Parker, PA-C's National Provider Identifier (NPI) is 1518337807, issued on Sep 30, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Marcus Parker, PA-C located?
The NPPES record lists a practice address at 9000 Franklin Square Dr, Baltimore, MD, 21237. Phone: (443) 777-7000. Providers update this record themselves, so call before visiting.
How can I verify Marcus Parker, PA-C's license?
NPPES lists Maryland license number C05946, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Marcus Parker, PA-C prescribe under Medicare Part D?
In 2024, Marcus Parker, PA-C had 868 Medicare Part D claims for 387 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Marcus Parker, PA-C's MIPS final score?
The 2023 MIPS final score is 80.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.