Katherine S. Mathias, PA
Physician Assistant · Rockville, MD
Katherine S. Mathias, PA is a physician assistant with a practice address in Rockville, Maryland, and NPI 1881688257, issued on Aug 31, 2005. Check the license (Maryland C0001617, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine S. Mathias
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- C0001617 MD
C01617 MD
Self-reported in NPPES; status is on the state search - Practice location
- 15225 Shady Grove RD, Rockville, MD 20850
- Phone
- (240) 401-4230
- Enumerated
- Aug 31, 2005
- Record last updated
- Jan 11, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050608000894); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,224 in Maryland → Look up another NPI →
Also registered at 15225 Shady Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Chen, M.D.Interventional Cardiology Physician1184650954
Verify Katherine S. Mathias in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C0001617Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% more Medicare Part D claims than the average physician assistant in 2024
1,554 Medicare Part D claims for 247 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 815 claims were for opioids.
Most prescribed
- Gabapentin262 claims
- Oxycodone Hcl171 claims
- Oxycodone-Acetaminophen128 claims
- Hydrocodone-Acetaminophen111 claims
- Tramadol Hcl110 claims
- Pregabalin100 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 Medical Group II LLCWashington, DC
- 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).
Katherine S. Mathias among 3,224 physician assistant records in Maryland
Katherine S. Mathias, PA is one of 3,224 physician assistant records with a practice address in Maryland. 76% 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, 97% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1994 · median 2017 among the 1,974 with a school on file
- Record last updated2017 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
115 physician assistant records list a practice address in Rockville
They are 115 of the 14,353 NPPES records with a practice address in Rockville, and 3,224 physician assistant records in Maryland.
All 3,224 in Maryland → Every provider in Rockville → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jason Badillo, P.A.Rockville, MD 208501396770202
- Gerald Bahimba, PA-CRockville, MD 208501760579460
- Lisa Gallucci, PA- CRockville, MD 208501548289986
- Marchele HillsRockville, MD 208501588692560
- Michele Kossey, PA-CRockville, MD 208501710907076
- Sippora Lehrhaupt, P.A.-CRockville, MD 208501720262009
- Michael NoganRockville, MD 208501417972910
- Roshnee Pennington, PA-CRockville, MD 208501508083759
Common questions
What is Katherine S. Mathias, PA's NPI number?
Katherine S. Mathias, PA's National Provider Identifier (NPI) is 1881688257, issued on Aug 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Katherine S. Mathias, PA located?
The NPPES record lists a practice address at 15225 Shady Grove RD, Rockville, MD, 20850. Phone: (240) 401-4230. Providers update this record themselves, so call before visiting.
How can I verify Katherine S. Mathias, PA's license?
NPPES lists Maryland license number C0001617, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine S. Mathias, PA prescribe under Medicare Part D?
In 2024, Katherine S. Mathias, PA had 1,554 Medicare Part D claims for 247 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Katherine S. Mathias, PA'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.