NPPES file of Aug 9, 2026

Catherine Larsen, PA

Physician Assistant · Laurel, MD

Catherine Larsen, PA is a physician assistant with a practice address in Laurel, Maryland, and NPI 1952583619, issued on Dec 4, 2007. Check the license (Maryland C03647, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952583619
Name
Catherine Larsen
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
C03647 MD
Self-reported in NPPES; status is on the state search
Practice location
575 Main St, Laurel, MD 20707
Phone
(301) 498-5990
Enumerated
Dec 4, 2007
Record last updated
Mar 11, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 575 Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Paul Baker, M.D.Emergency Medicine Physician1831138452
  2. Tammi Bechard, M.AC, L.AC, TH.MAcupuncturist1649508052
  3. Corey Brown, P.A.Physician Assistant1376670620
  4. Stanley Fox, M.AC., L.AC.Acupuncturist1306277116
  5. Victor Kumpel, P.A.Physician Assistant1467589788
  6. Tanya Pallia, PA-CMedical Physician Assistant1144269069

Verify Catherine Larsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license C03647
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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98% fewer Medicare Part D claims than the average physician assistant in 2024

13 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Catherine Larsen13
  2. Specialty average830

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.

Catherine Larsen among 3,224 physician assistant records in Maryland

Catherine Larsen, 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 2007, is newer than 17% of them.

  • NPI issued2007 · 17% of these records are older, 75% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2008 · 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).

Physician Assistant providers in Maryland

There are 3,224 physician assistant records in Maryland.

The 8 physician assistant records with the nearest ZIP codes

  1. Corey Brown, P.A.Laurel, MD 207071376670620
  2. Angelica GiulianiLaurel, MD 207071295377752
  3. Adanna HackettLaurel, MD 207071689229403
  4. Victor Kumpel, P.A.Laurel, MD 207071467589788
  5. Mihail Rimbu, MSLaurel, MD 207071831537349
  6. Brooke BanosLanham, MD 207061609419068
  7. Taylor Barger, PA-CLanham, MD 207061164988770
  8. Ernest Bonsu, MS, PA-CLanham, MD 207061518207539

Common questions

What is Catherine Larsen, PA's NPI number?

Catherine Larsen, PA's National Provider Identifier (NPI) is 1952583619, issued on Dec 4, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Larsen, PA located?

The NPPES record lists a practice address at 575 Main St, Laurel, MD, 20707. Phone: (301) 498-5990. Providers update this record themselves, so call before visiting.

How can I verify Catherine Larsen, PA's license?

NPPES lists Maryland license number C03647, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Catherine Larsen, PA prescribe under Medicare Part D?

In 2024, Catherine Larsen, PA had 13 Medicare Part D claims; the average among physician assistant prescribers was 830. 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.