NPPES file of Aug 9, 2026

Jennifer S. Rockfeld, M.D.

Internal Medicine Physician · New Haven, CT

Jennifer S. Rockfeld, M.D. is an internal medicine physician with a practice address in New Haven, Connecticut, and NPI 1659532091, issued on Jun 18, 2008. Check the license (Connecticut 54267, 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
1659532091
Name
Jennifer S. Rockfeld
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
54267 CT
Self-reported in NPPES; status is on the state search
Practice location
347 Grand Ave, New Haven, CT 06513
Phone
(203) 777-7411
Enumerated
Jun 18, 2008
Record last updated
Feb 7, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150910000941); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 2008
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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Verify Jennifer S. Rockfeld in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 54267
    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

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16% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,666 Medicare Part D claims for 306 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Jennifer Rockfeld2,666
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium237 claims
  2. Rosuvastatin Calcium199 claims
  3. Amlodipine Besylate149 claims
  4. Losartan Potassium132 claims
  5. Lisinopril112 claims
  6. Levothyroxine Sodium109 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 MIPS final score for 2023 (Medicare payment program): 93.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score81.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%78.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Northeast Medical Group IncGuilford, CT

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

Jennifer S. Rockfeld among 2,623 internal medicine physician records in Connecticut

Jennifer S. Rockfeld, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 40% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2008 · median 2004 among the 1,646 with a school on file
  • Record last updated2018 · 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

329 internal medicine physician records list a practice address in New Haven

They are 329 of the 9,793 NPPES records with a practice address in New Haven, and 2,623 internal medicine physician records in Connecticut.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Laurie Bridger, MDNew Haven, CT 065131720182876
  2. Karen Dahl, M.D.New Haven, CT 065131316056930
  3. Mehul Dalal, M.D.New Haven, CT 065131528256849
  4. Charles Dela Cruz, MD PHDNew Haven, CT 065131467548396
  5. Kelly Kyanko, M.D.New Haven, CT 065131881879674
  6. Nilda Leon-Smith, MDNew Haven, CT 065131992807937
  7. Mario Ochoa Prieto, M.D.New Haven, CT 065131407206295
  8. Douglas Olson, M.D.New Haven, CT 065131972788792

Common questions

What is Jennifer S. Rockfeld, M.D.'s NPI number?

Jennifer S. Rockfeld, M.D.'s National Provider Identifier (NPI) is 1659532091, issued on Jun 18, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer S. Rockfeld, M.D. located?

The NPPES record lists a practice address at 347 Grand Ave, New Haven, CT, 06513. Phone: (203) 777-7411. Providers update this record themselves, so call before visiting.

How can I verify Jennifer S. Rockfeld, M.D.'s license?

NPPES lists Connecticut license number 54267, 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 Jennifer S. Rockfeld, M.D. prescribe under Medicare Part D?

In 2024, Jennifer S. Rockfeld, M.D. had 2,666 Medicare Part D claims for 306 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Jennifer S. Rockfeld, M.D.'s MIPS final score?

The 2023 MIPS final score is 93.3 of 100. 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.