NPPES file of Aug 9, 2026

Chee Man Chan, MD

Internal Medicine Physician · Washington, DC

Chee Man Chan, MD is an internal medicine physician with a practice address in Washington, District of Columbia, and NPI 1912093618, issued on Oct 4, 2006. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912093618
Name
Chee Man Chan
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
60236580 NY
Self-reported in NPPES; status is on the state search
Practice location
110 Irving St NW # 2B-29, Washington, DC 20010
Phone
(202) 877-7856
Enumerated
Oct 4, 2006
Record last updated
Oct 21, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070913000859); accepts Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 2001
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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Verify Chee Man Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDistrict of Columbia Board of MedicineCheck 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 District of Columbia license search

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86% fewer Medicare Part D claims than the average internal medicine physician in 2024

433 Medicare Part D claims for 68 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.

  1. Chee Chan433
  2. Specialty average3,176

Most prescribed

  1. Albuterol Sulfate Hfa59 claims
  2. Spiriva Respimat30 claims
  3. Symbicort26 claims
  4. Furosemide23 claims
  5. Prednisone23 claims
  6. Ventolin Hfa22 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): 76.6 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.

  1. Qualityout of 100 · 30% of the final score63.2
  2. Costout of 100 · 30%55.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Medstar Medical Group II LLCWashington, DC

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

Chee Man Chan among 901 internal medicine physician records in District of Columbia

Chee Man Chan, MD is one of 901 internal medicine physician records with a practice address in District of Columbia. 73% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 67% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2001 · median 2008 among the 513 with a school on file
  • Record last updated2008 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

891 internal medicine physician records list a practice address in Washington

They are 891 of the 45,857 NPPES records with a practice address in Washington, and 901 internal medicine physician records in District of Columbia.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Fitzgerald Birmingham, MDWashington, DC 200101609846724
  2. Carmella Cole, MDWashington, DC 200101922057314
  3. Lawrence D'Angelo, MDWashington, DC 200101194785311
  4. Godwin Darko, MD, MPHWashington, DC 200101255384269
  5. Jessica Fields, MDWashington, DC 200101417903162
  6. Gerard Harris, M.D.Washington, DC 200101679542724
  7. Shameem Huq, MDWashington, DC 200101275587784
  8. Francisco King, M.D.Washington, DC 200101568430064

Common questions

What is Chee Man Chan, MD's NPI number?

Chee Man Chan, MD's National Provider Identifier (NPI) is 1912093618, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chee Man Chan, MD located?

The NPPES record lists a practice address at 110 Irving St NW # 2B-29, Washington, DC, 20010. Phone: (202) 877-7856. Providers update this record themselves, so call before visiting.

How can I verify Chee Man Chan, MD's license?

Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Chee Man Chan, MD prescribe under Medicare Part D?

In 2024, Chee Man Chan, MD had 433 Medicare Part D claims for 68 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Chee Man Chan, MD's MIPS final score?

The 2023 MIPS final score is 76.6 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.