NPPES file of Aug 9, 2026

Diane E. Fresca, M.D.

Endocrinology, Diabetes & Metabolism Physician · Princeton, NJ

Diane E. Fresca, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Princeton, New Jersey, and NPI 1104084649, issued on May 31, 2008. Check the license (New Jersey 25MA07686400, as entered in NPPES) on the New Jersey State Board of Medical Examiners; 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
1104084649
Name
Diane E. Fresca
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
25MA07686400 NJ
Self-reported in NPPES; status is on the state search
Practice location
601 Ewing St, Princeton, NJ 08540
Phone
(609) 924-4433
Enumerated
May 31, 2008
Record last updated
Dec 17, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(609) 924-4423
Medicare enrollment
Enrolled (PECOS I20050616001107); accepts Medicare assignment
Medical or professional school
Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 2001
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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8 nearest endocrinology, diabetes & metabolism physician records → All 417 in New Jersey → Look up another NPI →

Also registered at 601 Ewing St

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

  1. Charles Allen, ODOptometrist1194728899
  2. Andrea Barker, PAPhysician Assistant1750400941
  3. Amy Becker-Mattes, PH.D.Psychologist1700916525
  4. Zahra Beheshti, PT EDDPhysical Therapist1821098385
  5. Shirley Bembo, M.D.Endocrinology, Diabetes & Metabolism Physician1023041472
  6. Howard Buckwald, D.M.D.Periodontics1184793176

Verify Diane E. Fresca in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA07686400    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 New Jersey license search

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15% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

2,228 Medicare Part D claims for 346 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.

  1. Diane Fresca2,228
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium218 claims
  2. Synthroid134 claims
  3. Metformin Hcl116 claims
  4. Metformin Hcl Er109 claims
  5. Jardiance103 claims
  6. Ozempic103 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.

Industry payments in 2024: $230.50

11 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diane Fresca$230.50
  2. Specialty average$5,742.15

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Advocare, LLCHaddonfield, NJ

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

Diane E. Fresca among 417 endocrinology, diabetes & metabolism physician records in New Jersey

Diane E. Fresca, M.D. is one of 417 endocrinology, diabetes & metabolism physician records with a practice address in New Jersey. 85% 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 50% of them.

  • NPI issued2008 · 50% of these records are older, 42% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2001 · median 2006 among the 313 with a school on file
  • Record last updated2014 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in New Jersey

There are 417 endocrinology, diabetes & metabolism physician records in New Jersey.

All 417 in New Jersey → Every provider in Princeton → Endocrinology, Diabetes & Metabolism Physician nationwide →

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Shirley Bembo, M.D.Princeton, NJ 085401023041472
  2. Paul Deutsch, M.D.Princeton, NJ 085401225262355
  3. Sherin Elsa Mathews, M.D.Princeton, NJ 085401346656568
  4. Henry Goldstein, MDPrinceton, NJ 085401700946225
  5. Angela Inzerillo, MDPrinceton, NJ 085401346300852
  6. Ansu Joy, MDPrinceton, NJ 085401629278536
  7. Alan Moses, M.D.Princeton, NJ 085401922033067
  8. Cathleen Mullarkey-Desapio, MDPrinceton, NJ 085401225073505

Common questions

What is Diane E. Fresca, M.D.'s NPI number?

Diane E. Fresca, M.D.'s National Provider Identifier (NPI) is 1104084649, issued on May 31, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Diane E. Fresca, M.D. located?

The NPPES record lists a practice address at 601 Ewing St, Princeton, NJ, 08540. Phone: (609) 924-4433. Providers update this record themselves, so call before visiting.

How can I verify Diane E. Fresca, M.D.'s license?

NPPES lists New Jersey license number 25MA07686400, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Diane E. Fresca, M.D. prescribe under Medicare Part D?

In 2024, Diane E. Fresca, M.D. had 2,228 Medicare Part D claims for 346 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.