Ann K. Chen, PA
- Medicare patients, 2024
- 252
- Part D claims, 2024
- 762
- MIPS score, 2024
- 81
- Hospital affiliations
- 2
- Industry payments
- $340
- Practice address
- 10 St. Patrick'S Drive, Waldorf, MD 20603
- Practice phone
- Call (301) 705-7870
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
MedStar Shah Medical Group at Waldorf
Surgery Center - Medicare-Certified · Waldorf, Maryland
Find Ann Chen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Ann K. Chen is a physician assistant in Waldorf, Maryland
Ann Chen practices at MedStar Shah Medical Group at Waldorf in Waldorf, Maryland.
Ann Chen's NPI, 1750358438, was assigned on March 2, 2006. Ann Chen holds Maryland license C0004921.
- NPI
- 1750358438NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082692041
- NPI enumeration date
- March 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (301) 705-7870
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Ann K. Chen practices at MedStar Shah Medical Group at Waldorf in Waldorf, Maryland
Ann Chen's primary practice is MedStar Shah Medical Group at Waldorf, at 10 St. Patrick'S Drive, Waldorf, MD 20603. The practice phone is (301) 705-7870.
- MedStar Shah Medical Group at Waldorf10 St. Patrick'S Drive, Waldorf, MD 20603Phone(301) 705-7870
Source: Dmand AI Affiliation Data
Ann K. Chen is affiliated with 4 sites of care and 1 medical group
Ann Chen's primary practice is MedStar Shah Medical Group at Waldorf in Waldorf, Maryland. Ann Chen is also affiliated with MedStar St. Mary's Hospital. The medical group on file is MedStar Shah Medical Group. Dmand AI also links Ann Chen to 1 more hospital and 1 ambulatory surgery center, each named with a free account. Ann Chen's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Ann K. Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Ann Chen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MedStar Shah Medical Group at Waldorf | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Ann K. Chen is one of 2,452 physician assistants in Maryland
Physician assistant is Ann Chen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Ann Chen's licenses on file in 2 states: Maryland and Wisconsin.
Specialties and state licenses
- Physician assistant, MarylandPrimary
- Wisconsin license
Physician assistants near Ann Chen
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Ann K. Chen treated 252 Medicare patients in 2024, average age 73
CMS counts 252 Medicare patients who saw Ann Chen in 2024. The largest group is 65 to 74, with 124 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Ann Chen's median patient age at 58, with 67% women.
Ann Chen's Medicare patients by age, 2024
Ann Chen's Medicare patients by sex, 2024
- Women16365%
- Men8935%
Chronic conditions among Ann Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Ischemic heart disease34%
- Anxiety32%
- Diabetes31%
- Mood disorders25%
- Chronic kidney disease22%
Share of Medicare patients with each condition. A patient can have several.
Ann Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women67%
- Men31%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Ann K. Chen wrote 762 Medicare Part D claims in 2024
In 2024, Ann Chen wrote 762 Medicare Part D claims for 198 patients. 78% of them were for generic drugs.
Ann Chen's Part D claims by kind of drug, 2024
- Generic592 claims78%
- Brand-name170 claims22%
Drug classes CMS tracks in Ann Chen's Part D claims, 2024
- Antibiotics5%40 of 762 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Ann K. Chen scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Ann Chen for performance year 2024, reported as part of a group. Ann Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Ann Chen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Ann Chen's MIPS scores, performance year 2024
- 81of 100Final score
- 61.5of 100Quality
- 96of 100Promoting Interoperability
- 40of 100Improvement Activities
- 80of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Ann K. Chen received $340 in industry payments in 2025
CMS Open Payments shows 13 general payments to Ann Chen from 6 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Madrigal Pharmaceuticals paid the most, $172.
Companies that paid Ann Chen the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Ann K. Chen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Ann K. Chen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Ann K. Chen's NPI number?
Ann K. Chen's NPI number is 1750358438. It was assigned on March 2, 2006, and it is active in the NPI Registry.
What does Ann K. Chen specialize in?
Ann K. Chen is a physician assistant in Waldorf, Maryland. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Ann K. Chen practice?
Ann Chen practices at 10 St. Patrick'S Drive, Waldorf, MD 20603. Ann Chen's primary practice is MedStar Shah Medical Group at Waldorf in Waldorf, Maryland. Dmand AI also links Ann Chen to 1 hospital and 1 ambulatory surgery center.
What is Ann K. Chen's office phone number?
The practice phone on file for Ann Chen is (301) 705-7870.
What is Ann K. Chen's medical license number?
Ann Chen holds Maryland license C0004921, one of the licenses on file in 2 states.
Which states has Ann K. Chen been licensed in?
Dmand AI has state licenses on file for Ann Chen in Maryland and Wisconsin.
Which hospitals is Ann K. Chen affiliated with?
Ann Chen is affiliated with MedStar St. Mary's Hospital. Dmand AI links Ann Chen to 1 more hospital.
What medical group is Ann K. Chen part of?
Ann Chen is linked to MedStar Shah Medical Group.
Does Ann K. Chen accept Medicare?
Yes. CMS lists Ann Chen as accepting Medicare assignment.
Does Ann K. Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Ann Chen as offering telehealth services.
Show 4 more questionsShow fewer questions
What is Ann K. Chen's MIPS score?
Ann Chen's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
How many Medicare patients does Ann K. Chen see?
CMS counts 252 Medicare patients who saw Ann Chen in 2024, with an average age of 73.
Has Ann K. Chen received payments from drug or device companies?
CMS Open Payments shows $340 in general payments to Ann Chen from 6 companies from 2025 to 2025. The largest total came from Madrigal Pharmaceuticals.
How long has Ann K. Chen been practicing?
Ann Chen graduated from medical school in 2003, 23 years ago.
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