NPPES file of Aug 9, 2026

Kaitlin Fitzpatrick, M.D.

Internal Medicine Physician · Boston, MA

Kaitlin Fitzpatrick, M.D. is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1932557840, issued on Jun 1, 2016. Check the license (Massachusetts 278138, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1932557840
Name
Kaitlin Fitzpatrick
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
278138 MA
Self-reported in NPPES; status is on the state search
Practice location
165 Cambridge St Ste 501, Boston, MA 02114
Phone
(617) 726-4900
Enumerated
Jun 1, 2016
Record last updated
Jul 9, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190809000263); accepts Medicare assignment
Medical or professional school
University Of Massachusetts Medical School, 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 165 Cambridge St Ste 501

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

  1. Micker Amor, NPNurse Practitioner1770036097
  2. Savanna Conger, NP-CNurse Practitioner1588245906
  3. Katherine Johnston, M.D., M.A., M.SC.Internal Medicine Physician1164469763
  4. Tyler Lescure, MDInternal Medicine Physician1518594928
  5. Erin Lewis, APRNNurse Practitioner1639680788
  6. Sarah Scott, FNPNurse Practitioner1962177741

Verify Kaitlin Fitzpatrick in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 278138
    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 Massachusetts 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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48% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,658 Medicare Part D claims for 176 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 17 claims were for opioids.

  1. Kaitlin Fitzpatrick1,658
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium190 claims
  2. Lisinopril90 claims
  3. Amlodipine Besylate77 claims
  4. Hydrochlorothiazide66 claims
  5. Rosuvastatin Calcium65 claims
  6. Levothyroxine Sodium64 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. Massachusetts General Physicians Organization IncBoston, MA

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

Kaitlin Fitzpatrick among 6,825 internal medicine physician records in Massachusetts

Kaitlin Fitzpatrick, M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% 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 77% of them.

  • NPI issued2016 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2016 · median 2004 among the 4,103 with a school on file
  • Record last updated2019 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,320 internal medicine physician records list a practice address in Boston

They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jaime Chang, MDBoston, MA 021141205825197
  2. Jeffrey Engelman, MD PHDBoston, MA 021141538159108
  3. James Evans, MDBoston, MA 021141215939533
  4. Nicolette Fontaine, MDBoston, MA 021141841287174
  5. Nancy Gagliano, MDBoston, MA 021141881680767
  6. Patricia Gibbons, MDBoston, MA 021141619967221
  7. Steven Hersch, MDBoston, MA 021141174512149
  8. Mira Kautzky, M.D.Boston, MA 021141972505402

Common questions

What is Kaitlin Fitzpatrick, M.D.'s NPI number?

Kaitlin Fitzpatrick, M.D.'s National Provider Identifier (NPI) is 1932557840, issued on Jun 1, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Kaitlin Fitzpatrick, M.D. located?

The NPPES record lists a practice address at 165 Cambridge St Ste 501, Boston, MA, 02114. Phone: (617) 726-4900. Providers update this record themselves, so call before visiting.

How can I verify Kaitlin Fitzpatrick, M.D.'s license?

NPPES lists Massachusetts license number 278138, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kaitlin Fitzpatrick, M.D. prescribe under Medicare Part D?

In 2024, Kaitlin Fitzpatrick, M.D. had 1,658 Medicare Part D claims for 176 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.