NPPES file of Aug 9, 2026

Katherine Chakrabarti, MD

Rheumatology Physician · Ann Arbor, MI

Katherine Chakrabarti, MD is a rheumatology physician with a practice address in Ann Arbor, Michigan, and NPI 1801245543, issued on Jun 3, 2016. Check the license (Michigan 4351027915, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1801245543
Name
Katherine Chakrabarti
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
4351027915 MI
Self-reported in NPPES; status is on the state search
Practice location
3621 S State St, Ann Arbor, MI 48108
Phone
(734) 647-5299
Enumerated
Jun 3, 2016
Record last updated
Aug 12, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210712003577); accepts Medicare assignment
Medical or professional school
Beaumont Hospital Medial College - Nlg, 2016
Telehealth
Offers telehealth (CMS)
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 3621 S State St

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

  1. Lana Abdole, MDStudent in an Organized Health Care Education/Training Program1639750680
  2. Erin Cecchi, MSWClinical Social Worker1407202815
  3. Rebecca Montgomery, MDPsychiatry Physician1629710298

Verify Katherine Chakrabarti in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4351027915
    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 Michigan license search

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59% fewer Medicare Part D claims than the average rheumatology physician in 2024

813 Medicare Part D claims for 159 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.

  1. Katherine Chakrabarti813
  2. Specialty average1,978

Most prescribed

  1. Methotrexate109 claims
  2. Hydroxychloroquine Sulfate106 claims
  3. Prednisone87 claims
  4. Humira(Cf) Pen52 claims
  5. Sulfasalazine34 claims
  6. Allopurinol29 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 3 group practices

  1. Advantage Health/saint Mary's Medical GroupGrand Rapids, MI
  2. Center For Physical Rehabilitation And Therapy LPGrand Rapids, MI
  3. Center For Physical Rehabilitation IncGrand Rapids, MI

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

Katherine Chakrabarti among 226 rheumatology physician records in Michigan

Katherine Chakrabarti, MD is one of 226 rheumatology physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 87% of them.

  • NPI issued2016 · 87% of these records are older, 10% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2016 · median 2003 among the 156 with a school on file
  • Record last updated2021 · 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 207RR0500X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Michigan

There are 226 rheumatology physician records in Michigan.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Daniel McDougle, MDAnn Arbor, MI 481081164984241
  2. Daniel Clauw, MDAnn Arbor, MI 481091518042126
  3. Inocencio Cuesta, MDAnn Arbor, MI 481091992746820
  4. Samardeep Gupta, M.D.Ann Arbor, MI 481091891712253
  5. Mariana Kaplan, MDAnn Arbor, MI 481091235214842
  6. Puja Khanna, MDAnn Arbor, MI 481091396825071
  7. Timothy Laing, MDAnn Arbor, MI 481091396820908
  8. Wendy Marder, MDAnn Arbor, MI 481091205911815

Common questions

What is Katherine Chakrabarti, MD's NPI number?

Katherine Chakrabarti, MD's National Provider Identifier (NPI) is 1801245543, issued on Jun 3, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Chakrabarti, MD located?

The NPPES record lists a practice address at 3621 S State St, Ann Arbor, MI, 48108. Phone: (734) 647-5299. Providers update this record themselves, so call before visiting.

How can I verify Katherine Chakrabarti, MD's license?

NPPES lists Michigan license number 4351027915, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Katherine Chakrabarti, MD prescribe under Medicare Part D?

In 2024, Katherine Chakrabarti, MD had 813 Medicare Part D claims for 159 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.