Benjamin Gruenbaum, M.D., PH.D.
NPI 1184061749 · Anesthesiology Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Gruenbaum, M.D., PH.D. is a Anesthesiology Physician provider in Jacksonville, FL (NPI 1184061749).
Provider details
- NPI number
- 1184061749
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 056772 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
117 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) |
|---|---|---|
| Anesthesia for Extensive Surgery on Spine00670 | 39 | $350 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 21 | $42 |
| Anesthesia for Other Procedure on Brain00210 | 20 | $268 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 14 | $14 |
| Anesthesia for Other Procedure on Upper Abdomen00790 | 12 | $196 |
| Anesthesia for Other Procedure on Lower Spine00630 | 11 | $214 |
Typical Medicare-allowed amounts for these services range $14–$350 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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
Additional practice locations (2)
- 20 York StNew Haven, CT 06510-3220Phone: (203) 785-2802Fax: (203) 785-6664
- 20 York St # T-209Yale-New Haven HospitalNew Haven, CT 06510-3220Phone: (203) 789-3989Fax: (203) 789-3222
Registry dates
- Enumerated
- 2013-05-22
- Last updated
- 2020-09-30
- Certified
- 2020-09-30
Frequently asked questions
- What is Benjamin Gruenbaum's NPI number?
- Benjamin Gruenbaum's National Provider Identifier (NPI) is 1184061749, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Gruenbaum's specialty?
- Benjamin Gruenbaum is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Gruenbaum located?
- Benjamin Gruenbaum's practice location on file with NPPES is 4500 San Pablo Rd S, Jacksonville, FL 32224-1865.
- What is Benjamin Gruenbaum's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Gruenbaum is (904) 953-2000.
- Does Benjamin Gruenbaum accept Medicare?
- Benjamin Gruenbaum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Gruenbaum's NPI active?
- Yes — Benjamin Gruenbaum's NPI (1184061749) is active in the NPPES registry as of the last update on 2020-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.