Matthew Freeby, M.D.
NPI 1013189646 · Endocrinology, Diabetes & Metabolism Physician · New York, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Freeby, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in New York, NY (NPI 1013189646).
Provider details
- NPI number
- 1013189646
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 236454 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
1,753 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) |
|---|---|---|
| Diabetes Outpatient Self-Management Training Services, Individual, Per 30 MinutesG0108 | 523 | $59 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 259 | $136 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 157 | $81 |
| Hemoglobin A1c Level83036 | 139 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 122 | $101 |
| Blood Glucose (sugar) Level82947 | 112 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hclbrand: Metformin Hcl Er | 219 | 61 |
| Semaglutidebrand: Ozempic | 218 | 44 |
| Metformin Hcl | 216 | 71 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 210 | 70 |
| Empagliflozinbrand: Jardiance | 197 | 47 |
| Dulaglutidebrand: Trulicity | 173 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$124 across 3 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
- 2008-03-24
- Last updated
- 2024-12-11
- Certified
- 2024-12-11
Frequently asked questions
- What is Matthew Freeby's NPI number?
- Matthew Freeby's National Provider Identifier (NPI) is 1013189646, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Freeby's specialty?
- Matthew Freeby is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Freeby located?
- Matthew Freeby's practice location on file with NPPES is 1150 Saint Nicholas Ave, New York, NY 10032-3822.
- What is Matthew Freeby's phone number?
- The practice phone number listed in the NPPES registry for Matthew Freeby is (212) 851-5494.
- Does Matthew Freeby accept Medicare?
- Matthew Freeby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Freeby's NPI active?
- Yes — Matthew Freeby's NPI (1013189646) is active in the NPPES registry as of the last update on 2024-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.