NPPES file of Aug 9, 2026

Harriet Margot Kluger, MD

Medical Oncology Physician · New Haven, CT

Harriet Margot Kluger, MD is a medical oncology physician with a practice address in New Haven, Connecticut, and NPI 1528042819, issued on Dec 1, 2005. Check the license (Connecticut 038926, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528042819
Name
Harriet Margot Kluger
Credential
MD
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
038926 CT
Self-reported in NPPES; status is on the state search
Practice location
800 Howard Ave, New Haven, CT 06519
Phone
(203) 688-4191
Enumerated
Dec 1, 2005
Record last updated
Aug 4, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(203) 737-2617
Medicaid ID
001389263 CT
Medicare enrollment
Enrolled (PECOS I20100927000872); accepts Medicare assignment
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 800 Howard Ave

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

  1. Sonya Abdel-Razeq, MDMaternal & Fetal Medicine Physician1265415350
  2. Edouard Aboian, M.D.Vascular Surgery Physician1588830566
  3. Lynn Acton, MSSpeech-Language Pathologist1205817889
  4. Joseph Agostini, MDGeriatric Medicine (Internal Medicine) Physician1104832146
  5. Nita Ahuja, M.D.Surgery Physician1093779308
  6. Christina Allen, MDSports Medicine (Orthopaedic Surgery) Physician1841242351

Verify Harriet Margot Kluger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 038926
    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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48% fewer Medicare Part D claims than the average medical oncology physician in 2024

367 Medicare Part D claims for 70 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Harriet Kluger367
  2. Specialty average703

Most prescribed

  1. Levothyroxine Sodium60 claims
  2. Prednisone36 claims
  3. Lenvima31 claims
  4. Cabometyx21 claims
  5. Ondansetron Odt17 claims
  6. Inlyta13 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): 73.6 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 score75.8
  2. Costout of 100 · 30%51.4
  3. Promoting interoperabilityout of 100 · 25%74.0
  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. Yale UniversityNew Haven, CT

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

Harriet Margot Kluger among 99 medical oncology physician records in Connecticut

Harriet Margot Kluger, MD is one of 99 medical oncology physician records with a practice address in Connecticut. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 81% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1993 · median 2005 among the 66 with a school on file
  • Record last updated2008 · 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 207RX0202X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in Connecticut

There are 99 medical oncology physician records in Connecticut.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Vincent Devita, MDNew Haven, CT 065191891785341
  2. Michael Digiovanna, MDNew Haven, CT 065191023006947
  3. Francine Foss, MDNew Haven, CT 065191104814888
  4. Scott Gettinger, MDNew Haven, CT 065191477541274
  5. Ian Krop, MD PHDNew Haven, CT 065191033187455
  6. Jill Lacy, MDNew Haven, CT 065191053392951
  7. Maryam Lustberg, M.D.New Haven, CT 065191639111065
  8. Peter Marks, MDNew Haven, CT 065191366479412

Common questions

What is Harriet Margot Kluger, MD's NPI number?

Harriet Margot Kluger, MD's National Provider Identifier (NPI) is 1528042819, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Harriet Margot Kluger, MD located?

The NPPES record lists a practice address at 800 Howard Ave, New Haven, CT, 06519. Phone: (203) 688-4191. Providers update this record themselves, so call before visiting.

How can I verify Harriet Margot Kluger, MD's license?

NPPES lists Connecticut license number 038926, 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 Harriet Margot Kluger, MD prescribe under Medicare Part D?

In 2024, Harriet Margot Kluger, MD had 367 Medicare Part D claims for 70 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.

What is Harriet Margot Kluger, MD's MIPS final score?

The 2023 MIPS final score is 73.6 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.