Allen J. Gilson, M.D.
Pulmonary Disease Physician · Frederick, MD
Allen J. Gilson, M.D. is a pulmonary disease physician with a practice address in Frederick, Maryland, and NPI 1346241346, issued on Aug 2, 2005. Check the license (Maryland D0026516, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Allen J. Gilson
- Credential
- M.D.
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- D0026516 MD
Self-reported in NPPES; status is on the state search - Practice location
- 7115 Guilford Dr, Frederick, MD 21704
- Phone
- (301) 663-5922
- Enumerated
- Aug 2, 2005
- Record last updated
- Jul 25, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (301) 663-8292
- Medicaid ID
- 330111700 MD
- Medicare enrollment
- Enrolled (PECOS I20100827000032); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 1979
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 342 in Maryland → Look up another NPI →
Also registered at 7115 Guilford Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Brandenburg, DDSDentist1811259260
- Anish Desai, M.D.Pulmonary Disease Physician1447465232
- Phuong Ho, MDInternal Medicine Physician1811179443
- Michael Tolino, M.D.Pulmonary Disease Physician1932100930
- Neil Waravdekar, M.D.Pulmonary Disease Physician1780685784
Verify Allen J. Gilson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0026516Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.3 times the Medicare Part D claims of the average pulmonary disease physician in 2024
6,071 Medicare Part D claims for 103 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 100 claims were for opioids.
Most prescribed
- Trazodone Hcl233 claims
- Amlodipine Besylate223 claims
- Atorvastatin Calcium214 claims
- Potassium Chloride183 claims
- Quetiapine Fumarate181 claims
- Furosemide170 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.
Bills Medicare through one group practice
- Frederick Health Hospital IncFrederick, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allen J. Gilson among 342 pulmonary disease physician records in Maryland
Allen J. Gilson, M.D. is one of 342 pulmonary disease physician records with a practice address in Maryland. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1979 · median 2000 among the 225 with a school on file
- Record last updated2012 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Maryland
There are 342 pulmonary disease physician records in Maryland.
All 342 in Maryland → Every provider in Frederick → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Anish Desai, M.D.Frederick, MD 217041447465232
- Lloyd Halvorson, M.D.Frederick, MD 217041033110028
- Michael Tolino, M.D.Frederick, MD 217041932100930
- Neil Waravdekar, M.D.Frederick, MD 217041780685784
- Lev Agarunov, M.D.Frederick, MD 217031316067929
- Syed Mahmood, M.D.Frederick, MD 217031831544022
- Ravi Patel, D.O.Frederick, MD 217031851824320
- Petra Thomas, M.D.Frederick, MD 217031518957661
Common questions
What is Allen J. Gilson, M.D.'s NPI number?
Allen J. Gilson, M.D.'s National Provider Identifier (NPI) is 1346241346, issued on Aug 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Allen J. Gilson, M.D. located?
The NPPES record lists a practice address at 7115 Guilford Dr, Frederick, MD, 21704. Phone: (301) 663-5922. Providers update this record themselves, so call before visiting.
How can I verify Allen J. Gilson, M.D.'s license?
NPPES lists Maryland license number D0026516, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Allen J. Gilson, M.D. prescribe under Medicare Part D?
In 2024, Allen J. Gilson, M.D. had 6,071 Medicare Part D claims for 103 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.