Gregory Difelice, M.D.
NPI 1639148208 · Sports Medicine (Orthopaedic Surgery) Physician · New York, NY
Gregory Difelice, M.D. is a Sports Medicine (Orthopaedic Surgery) Physician provider in New York, NY (NPI 1639148208).
Provider details
- NPI number
- 1639148208
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Orthopaedic Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 202532 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
543 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) |
|---|---|---|
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 167 | $128 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 128 | $98 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 90 | $181 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 77 | $120 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 44 | $139 |
| Replacement of Knee Joint, Both Sides of Knee |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$189,019 across 41 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
Additional practice locations (3)
- 400 Franklin Tpke Ste 200Mahwah, NJ 07430-3518Phone: (212) 606-1844Fax: (212) 746-8744
- 15 E Midland Ave Ste aParamus, NJ 07652-2938Phone: (212) 606-1844Fax: (212) 746-8744
- 523 E 72nd St Fl 2New York, NY 10021-4099Phone: (212) 606-1844Fax: (212) 746-8744
Registry dates
- Enumerated
- 2006-03-16
- Last updated
- 2025-05-16
- Certified
- 2025-05-16
Frequently asked questions
- What is Gregory Difelice's NPI number?
- Gregory Difelice's National Provider Identifier (NPI) is 1639148208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Difelice's specialty?
- Gregory Difelice is listed in the NPPES registry with a primary specialty of Sports Medicine (Orthopaedic Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Difelice located?
- Gregory Difelice's practice location on file with NPPES is 535 E 70th St, New York, NY 10021.
- What is Gregory Difelice's phone number?
- The practice phone number listed in the NPPES registry for Gregory Difelice is (212) 606-1844.
- Is Gregory Difelice's NPI active?
- Yes — Gregory Difelice's NPI (1639148208) is active in the NPPES registry as of the last update on 2025-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.