Ann Chen, PA
Physician Assistant · Prince Frederick, MD
Ann Chen, PA is a physician assistant with a practice address in Prince Frederick, Maryland, and NPI 1750358438, issued on Mar 2, 2006. Check the license (Maryland C0004921, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ann Chen
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- C0004921 MD
1711-023 WI
Self-reported in NPPES; status is on the state search - Practice location
- 130 Hospital RD Ste 300, Prince Frederick, MD 20678
- Phone
- (410) 535-4333
- Enumerated
- Mar 2, 2006
- Record last updated
- Sep 26, 2024
- Fax
- (410) 535-3260
- Medicaid ID
- 841044500 MD
- Medicare enrollment
- Enrolled (PECOS I20130221000061); 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 130 Hospital RD Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fasika Aberra, M.D.Gastroenterology Physician1134480858
- Viplav DeogaonkarInternal Medicine Physician1609339050
- Utpal Dutta, MDNephrology Physician1649428897
- Allison Frere, PA-CPhysician Assistant1033871421
- Saad Haque, MDGastroenterology Physician1750604104
- Anson Joseph, M.D.,Nephrology Physician1376579391
Verify Ann Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C0004921Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average physician assistant in 2024
762 Medicare Part D claims for 198 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Omeprazole126 claims
- Famotidine87 claims
- Sod Sulf-Potass Sulf-Mag Sulf49 claims
- Pantoprazole Sodium41 claims
- Dicyclomine Hcl28 claims
- Creon27 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): 77.5 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).
Industry payments in 2024: $515.45
25 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 64,719 providers of this specialty with any payment received $841.65 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
- Medstar Medical Group - Southern Maryland LLCWaldorf, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann Chen among 3,224 physician assistant records in Maryland
Ann Chen, 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 83% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2003 · median 2017 among the 1,974 with a school on file
- Record last updated2024 · 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).
22 physician assistant records list a practice address in Prince Frederick
They are 22 of the 663 NPPES records with a practice address in Prince Frederick, and 3,224 physician assistant records in Maryland.
All 3,224 in Maryland → Every provider in Prince Frederick → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Lauren Brendel, PA-CPrince Frederick, MD 206781154864916
- Richard Burch, PA-CPrince Frederick, MD 206781669655403
- Brittanie Eggan, P.A.Prince Frederick, MD 206781679859250
- Deven Fetzek, PA-CPrince Frederick, MD 206781326290511
- Jessica Jones, PACPrince Frederick, MD 206781770837510
- Amy Larson, P.A.Prince Frederick, MD 206781417285784
- Lori Maddox, P.A.-C.Prince Frederick, MD 206781215900568
- Rebecca Murphy, PA-CPrince Frederick, MD 206781023204971
Common questions
What is Ann Chen, PA's NPI number?
Ann Chen, PA's National Provider Identifier (NPI) is 1750358438, issued on Mar 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ann Chen, PA located?
The NPPES record lists a practice address at 130 Hospital RD Ste 300, Prince Frederick, MD, 20678. Phone: (410) 535-4333. Providers update this record themselves, so call before visiting.
How can I verify Ann Chen, PA's license?
NPPES lists Maryland license number C0004921, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Ann Chen, PA prescribe under Medicare Part D?
In 2024, Ann Chen, PA had 762 Medicare Part D claims for 198 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Ann Chen, PA's MIPS final score?
The 2023 MIPS final score is 77.5 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.