Glen Granati, M.D.
NPI 1467872739 · Critical Care Medicine (Internal Medicine) Physician · Port Jefferson, NY
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Glen Granati, M.D. is a Critical Care Medicine (Internal Medicine) Physician provider in Port Jefferson, NY (NPI 1467872739).
Provider details
- NPI number
- 1467872739
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 302485 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
295 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 94 | $236 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 88 | $87 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 29 | $145 |
| Test to Determine Lung Volumes Using Sensors94726 | 18 | $13 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 17 | $10 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 17 | $133 |
Practice location
Mailing address
Additional practice locations (1)
- Dept. of Medicine, Hsc Level 16, Suny Stony BrookStony Brook, NY 11794Phone: (631) 444-7411Fax: (631) 444-2493
Registry dates
- Enumerated
- 2014-04-24
- Last updated
- 2020-09-10
- Certified
- 2020-09-09
Frequently asked questions
- What is Glen Granati's NPI number?
- Glen Granati's National Provider Identifier (NPI) is 1467872739, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glen Granati's specialty?
- Glen Granati is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Glen Granati located?
- Glen Granati's practice location on file with NPPES is Mather Hospital, 75 N Country Rd, Port Jefferson, NY 11777.
- What is Glen Granati's phone number?
- The practice phone number listed in the NPPES registry for Glen Granati is (631) 473-1320.
- Does Glen Granati accept Medicare?
- Glen Granati is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Glen Granati's NPI active?
- Yes — Glen Granati's NPI (1467872739) is active in the NPPES registry as of the last update on 2020-09-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.