Ruby Greywoode, MD
NPI 1972861300 · Internal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruby Greywoode, MD is a Internal Medicine Physician provider in New York, NY (NPI 1972861300).
Provider details
- NPI number
- 1972861300
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
49 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 | 21 | $115 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 15 | $100 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 13 | $156 |
Typical Medicare-allowed amounts for these services range $100–$156 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 84 | 23 |
| Famotidine | 62 | 24 |
| Mesalamine | 38 | — |
| Adalimumabbrand: Humira(cf) Pen | 27 | — |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 22 | 22 |
| Dicyclomine Hcl | 15 | — |
| Azathioprine | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$336 across 5 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
- 2012-04-23
- Last updated
- 2013-09-24
Frequently asked questions
- What is Ruby Greywoode's NPI number?
- Ruby Greywoode's National Provider Identifier (NPI) is 1972861300, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruby Greywoode's specialty?
- Ruby Greywoode is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ruby Greywoode located?
- Ruby Greywoode's practice location on file with NPPES is 622 W 168th St, New York, NY 10032-3725.
- What is Ruby Greywoode's phone number?
- The practice phone number listed in the NPPES registry for Ruby Greywoode is (212) 305-6354.
- Does Ruby Greywoode accept Medicare?
- Ruby Greywoode is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruby Greywoode's NPI active?
- Yes — Ruby Greywoode's NPI (1972861300) is active in the NPPES registry as of the last update on 2013-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.