Mark Rubin, MD
NPI 1891777694 · Gastroenterology Physician · Bronx, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Rubin, MD is a Gastroenterology Physician provider in Bronx, NY (NPI 1891777694).
Provider details
- NPI number
- 1891777694
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 135924 (NY)
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
54 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 32 | $99 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 22 | $93 |
Typical Medicare-allowed amounts for these services range $93–$99 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-17
- Last updated
- 2014-05-22
Frequently asked questions
- What is Mark Rubin's NPI number?
- Mark Rubin's National Provider Identifier (NPI) is 1891777694, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Rubin's specialty?
- Mark Rubin is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Rubin located?
- Mark Rubin's practice location on file with NPPES is 1250 Waters Pl, Bronx, NY 10461-2720.
- What is Mark Rubin's phone number?
- The practice phone number listed in the NPPES registry for Mark Rubin is (718) 239-0115.
- Does Mark Rubin accept Medicare?
- Mark Rubin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Rubin's NPI active?
- Yes — Mark Rubin's NPI (1891777694) is active in the NPPES registry as of the last update on 2014-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.