Diane Fresca, M.D.
NPI 1104084649 · Endocrinology, Diabetes & Metabolism Physician · Princeton, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Fresca, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Princeton, NJ (NPI 1104084649).
Provider details
- NPI number
- 1104084649
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 25MA07686400 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,077 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 383 | $134 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 370 | $17 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 103 | $95 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 79 | $172 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 69 | $35 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 218 | 85 |
| Levothyroxine Sodiumbrand: Synthroid | 134 | 44 |
| Metformin Hcl | 116 | 39 |
| Metformin Hclbrand: Metformin Hcl Er | 109 | 39 |
| Semaglutidebrand: Ozempic | 103 | 35 |
| Empagliflozinbrand: Jardiance | 103 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$231 across 11 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-31
- Last updated
- 2014-12-17
Frequently asked questions
- What is Diane Fresca's NPI number?
- Diane Fresca's National Provider Identifier (NPI) is 1104084649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Fresca's specialty?
- Diane Fresca is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Fresca located?
- Diane Fresca's practice location on file with NPPES is 601 Ewing St, Princeton, NJ 08540-2757.
- What is Diane Fresca's phone number?
- The practice phone number listed in the NPPES registry for Diane Fresca is (609) 924-4433.
- Does Diane Fresca accept Medicare?
- Diane Fresca is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Fresca's NPI active?
- Yes — Diane Fresca's NPI (1104084649) is active in the NPPES registry as of the last update on 2014-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.