Caren Greenstein, M.D.
NPI 1811930910 · Diagnostic Radiology Physician · White Plains, NY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caren Greenstein, M.D. is a Diagnostic Radiology Physician provider in White Plains, NY (NPI 1811930910).
Provider details
- NPI number
- 1811930910
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 032719 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,218 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Screening 3d Breast Mammography77063 | 578 | $33 |
| Screening Mammography77067 | 578 | $43 |
| Screening Mammography77067 | 229 | $63 |
| Screening 3d Breast Mammography77063 | 228 | $37 |
| Diagnostic Mammography of 1 Breast77065 | 144 | $44 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 120 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-14
- Last updated
- 2015-02-04
Frequently asked questions
- What is Caren Greenstein's NPI number?
- Caren Greenstein's National Provider Identifier (NPI) is 1811930910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caren Greenstein's specialty?
- Caren Greenstein is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Caren Greenstein located?
- Caren Greenstein's practice location on file with NPPES is 41 E Post Rd, White Plains, NY 10601-4607.
- What is Caren Greenstein's phone number?
- The practice phone number listed in the NPPES registry for Caren Greenstein is (914) 681-2929.
- Does Caren Greenstein accept Medicare?
- Caren Greenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caren Greenstein's NPI active?
- Yes — Caren Greenstein's NPI (1811930910) is active in the NPPES registry as of the last update on 2015-02-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.