Loren Greene, M.D.
NPI 1881607810 · Endocrinology, Diabetes & Metabolism Physician · New York, NY
Loren Greene, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in New York, NY (NPI 1881607810).
Provider details
- NPI number
- 1881607810
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 127405 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodiumbrand: Synthroid | 269 | 74 |
| Atorvastatin Calcium | 54 | 17 |
| Alendronate Sodium | 53 | 18 |
| Rosuvastatin Calcium | 49 | 16 |
| Tirzepatidebrand: Mounjaro | 41 | — |
| Metformin Hcl | 41 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$469 across 15 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
- 2006-08-14
- Last updated
- 2012-03-02
Frequently asked questions
- What is Loren Greene's NPI number?
- Loren Greene's National Provider Identifier (NPI) is 1881607810, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Loren Greene's specialty?
- Loren Greene is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Loren Greene located?
- Loren Greene's practice location on file with NPPES is 650 First Avenue, New York, NY 10016-3240.
- What is Loren Greene's phone number?
- The practice phone number listed in the NPPES registry for Loren Greene is (212) 263-7449.
- Is Loren Greene's NPI active?
- Yes — Loren Greene's NPI (1881607810) is active in the NPPES registry as of the last update on 2012-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.