NPPES file of Aug 9, 2026

Henry Han Chen, MD

Physical Medicine & Rehabilitation Physician · Danbury, CT

Henry Han Chen, MD is a physical medicine & rehabilitation physician with a practice address in Danbury, Connecticut, and NPI 1245868280, issued on Mar 27, 2020. Check the license (Connecticut 81423, as entered in NPPES) on the Connecticut Medical Examining Board; 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
1245868280
Name
Henry Han Chen
Credential
MD
Primary taxonomy
Physical Medicine & Rehabilitation Physician 208100000X
License number
81423 CT
Self-reported in NPPES; status is on the state search
Practice location
24 Hospital Ave, Danbury, CT 06810
Phone
(203) 739-7000
Enumerated
Mar 27, 2020
Record last updated
Jun 24, 2025
Medicare enrollment
Enrolled (PECOS I20250829002711); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 24 Hospital Ave

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

  1. Jacqueline AddonaStudent in an Organized Health Care Education/Training Program1669232443
  2. Fernando Afonso, M.D.Internal Medicine Physician1992980536
  3. Alka Aggarwal, MDInternal Medicine Physician1427041987
  4. Mohamed Ahmed, M.D.Internal Medicine Physician1235391756
  5. Syed Rakin Ahmed, MD, PHDStudent in an Organized Health Care Education/Training Program1518809870
  6. Gregory Albert, MDAnesthesiology Physician1588797930

Verify Henry Han Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 81423
    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
Open the Connecticut 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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96% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024

28 Medicare Part D claims for 13 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Henry Chen28
  2. Specialty average727

Most prescribed

  1. Baclofen13 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.

Bills Medicare through one group practice

  1. Nuvance Health Medical Practice CT IncDanbury, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Henry Han Chen among 192 physical medicine & rehabilitation physician records in Connecticut

Henry Han Chen, MD is one of 192 physical medicine & rehabilitation physician records with a practice address in Connecticut. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 77% of them.

  • NPI issued2020 · 77% of these records are older, 16% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2020 · median 2004 among the 98 with a school on file
  • Record last updated2025 · 58% 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 Connecticut 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 Connecticut

There are 192 physical medicine & rehabilitation physician records in Connecticut.

The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes

  1. Beth Aaronson, M.D.Danbury, CT 068101417991456
  2. Mario Lopez-AvalosDanbury, CT 068101528680113
  3. Shannon MahoneyDanbury, CT 068101740926609
  4. Scott NeumannDanbury, CT 068101437772068
  5. Mitchell Prywes, MDDanbury, CT 068101538172861
  6. Brian Riordan, M.D.Danbury, CT 068101326082751
  7. Randolph Trowbridge, MDDanbury, CT 068101720098247
  8. Oz PariserDanbury, CT 068111821491218

Common questions

What is Henry Han Chen, MD's NPI number?

Henry Han Chen, MD's National Provider Identifier (NPI) is 1245868280, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Henry Han Chen, MD located?

The NPPES record lists a practice address at 24 Hospital Ave, Danbury, CT, 06810. Phone: (203) 739-7000. Providers update this record themselves, so call before visiting.

How can I verify Henry Han Chen, MD's license?

NPPES lists Connecticut license number 81423, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Henry Han Chen, MD prescribe under Medicare Part D?

In 2024, Henry Han Chen, MD had 28 Medicare Part D claims for 13 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. 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.