Shannon L. Gilliam, PA
Medical Physician Assistant · Waldorf, MD
Shannon L. Gilliam, PA is a medical physician assistant with a practice address in Waldorf, Maryland, and NPI 1972548584, issued on Jun 18, 2006. Check the license (Maryland C0003161, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Shannon L. Gilliam
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- C0003161 MD
Self-reported in NPPES; status is on the state search - Practice location
- 12070 Old Line Ctr Ste 303, Waldorf, MD 20602
- Phone
- (301) 893-2505
- Enumerated
- Jun 18, 2006
- Record last updated
- Feb 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20060504000697); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 871 in Maryland → Look up another NPI →
Also registered at 12070 Old Line Ctr Ste 303
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lilli ConnerPhysician Assistant1023681640
- Jacob Hill, PA-CMedical Physician Assistant1972325595
- Samuel Itscoitz, MDCardiovascular Disease Physician1760587596
- Natasha Payne-James, NPFamily Nurse Practitioner1184041170
- Tulani Washington Plaskett, M.D.Cardiovascular Disease Physician1033504279
Verify Shannon L. Gilliam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C0003161Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average medical physician assistant in 2024
43 Medicare Part D claims for 14 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $138.49
6 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Capital Critical Care, LLCSilver Spring, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shannon L. Gilliam among 871 medical physician assistant records in Maryland
Shannon L. Gilliam, PA 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 78% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated2003 · median 2012 among the 469 with a school on file
- Record last updated2020 · 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 Waldorf → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Jordan Bebber, PA-CWaldorf, MD 206021588097265
- Jacqueline Bragunier, PA-CWaldorf, MD 206021467595348
- Andrea Donohoe, PA-CWhite Plains, MD 206021871998179
- Christine Gardella, PA-CWaldorf, MD 206021538437223
- Jennifer Hilfiker, PA-CWaldorf, MD 206021013193036
- Jacob Hill, PA-CWaldorf, MD 206021972325595
- Jennifer Knode, PACWaldorf, MD 206021245237684
- Monica Leid, PA-CWaldorf, MD 206021013280916
Common questions
What is Shannon L. Gilliam, PA's NPI number?
Shannon L. Gilliam, PA's National Provider Identifier (NPI) is 1972548584, issued on Jun 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Shannon L. Gilliam, PA located?
The NPPES record lists a practice address at 12070 Old Line Ctr Ste 303, Waldorf, MD, 20602. Phone: (301) 893-2505. Providers update this record themselves, so call before visiting.
How can I verify Shannon L. Gilliam, PA's license?
NPPES lists Maryland license number C0003161, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Shannon L. Gilliam, PA prescribe under Medicare Part D?
In 2024, Shannon L. Gilliam, PA had 43 Medicare Part D claims for 14 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
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.