John P. Casey, M.D.
Physical Medicine & Rehabilitation Physician · Gaithersburg, MD
John P. Casey, M.D. is a physical medicine & rehabilitation physician with a practice address in Gaithersburg, Maryland, and NPI 1962488692, issued on Dec 15, 2005. Check the license (Maryland D0043243, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- John P. Casey
- Credential
- M.D.
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- D0043243 MD
Self-reported in NPPES; status is on the state search - Practice location
- 201 Russell Ave, Gaithersburg, MD 20877
- Phone
- (301) 468-1995
- Enumerated
- Dec 15, 2005
- Record last updated
- Mar 31, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (301) 468-1994
- Medicaid ID
- 216651800 MD
- Medicare enrollment
- Enrolled (PECOS I20100208000755); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 330 in Maryland → Look up another NPI →
Also registered at 201 Russell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mamatha Boya, PTPhysical Therapist1932463270
- Steven Giannotti, OTR/LOccupational Therapist1629084637
- Ronald Greger, M.D.Adult Medicine Physician1922093723
- Kathryn Hamilton, PTGeriatric Physical Therapist1205641412
Verify John P. Casey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0043243Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
409 Medicare Part D claims for 100 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 241 claims were for opioids.
Most prescribed
- Oxycodone Hcl104 claims
- Tramadol Hcl90 claims
- Clonazepam66 claims
- Hydrocodone-Acetaminophen24 claims
- Methylprednisolone Acetate17 claims
- Pregabalin15 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 MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Suburban/nrh Medical Rehabilitation IncBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John P. Casey among 330 physical medicine & rehabilitation physician records in Maryland
John P. Casey, M.D. is one of 330 physical medicine & rehabilitation physician records with a practice address in Maryland. 57% 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, 94% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated1978 · median 2007 among the 159 with a school on file
- Record last updated2017 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Maryland
There are 330 physical medicine & rehabilitation physician records in Maryland.
All 330 in Maryland → Every provider in Gaithersburg → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Joseph Lin, MD PHDGaithersburg, MD 208771851493233
- Jatinder Narula, MDGaithersburg, MD 208771730371501
- Elnaz Balakhanlou, MDGaithersburg, MD 208781003260407
- Raman Kapur, MDGaithersburg, MD 208781033224985
- Jesse Lou, MDGermantown, MD 208761134788953
- Adnan Siddiqui, M.D.Germantown, MD 208761457709354
- Timothy Yoon, MDGermantown, MD 208761568586675
- Jacqueline LoweryGaithersburg, MD 208791477702199
Common questions
What is John P. Casey, M.D.'s NPI number?
John P. Casey, M.D.'s National Provider Identifier (NPI) is 1962488692, issued on Dec 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John P. Casey, M.D. located?
The NPPES record lists a practice address at 201 Russell Ave, Gaithersburg, MD, 20877. Phone: (301) 468-1995. Providers update this record themselves, so call before visiting.
How can I verify John P. Casey, M.D.'s license?
NPPES lists Maryland license number D0043243, 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 John P. Casey, M.D. prescribe under Medicare Part D?
In 2024, John P. Casey, M.D. had 409 Medicare Part D claims for 100 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
What is John P. Casey, M.D.'s MIPS final score?
The 2023 MIPS final score is 0 of 100. 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.