Benjamin Fredrick Gruenbaum, M.D., PH.D.
Anesthesiology Physician · Jacksonville, FL
Benjamin Fredrick Gruenbaum, M.D., PH.D. is an anesthesiology physician with a practice address in Jacksonville, Florida, and NPI 1184061749, issued on May 22, 2013. Check the license (Florida ME145904, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Benjamin Fredrick Gruenbaum
- Credential
- M.D., PH.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- ME145904 FL
056772 CT
Self-reported in NPPES; status is on the state search - Practice location
- 4500 San Pablo RD S, Jacksonville, FL 32224
- Phone
- (904) 953-2000
- Enumerated
- May 22, 2013
- Record last updated
- Sep 30, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200924000133); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 3,375 in Florida → Look up another NPI →
Also registered at 4500 San Pablo RD S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Benjamin Fredrick Gruenbaum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME145904Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mayo Clinic JacksonvilleJacksonville, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Benjamin Fredrick Gruenbaum among 3,375 anesthesiology physician records in Florida
Benjamin Fredrick Gruenbaum, M.D., PH.D. is one of 3,375 anesthesiology physician records with a practice address in Florida. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 76% of them.
- NPI issued2013 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2013 · median 2003 among the 2,312 with a school on file
- Record last updated2020 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
266 anesthesiology physician records list a practice address in Jacksonville
They are 266 of the 24,194 NPPES records with a practice address in Jacksonville, and 3,375 anesthesiology physician records in Florida.
All 3,375 in Florida → Every provider in Jacksonville → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Perry Bechtle, DOJacksonville, FL 322241558358267
- Sorin Brull, MDJacksonville, FL 322241538156823
- Claudia Crawford, MDJacksonville, FL 322241083601371
- Roy Cucchiara, MDJacksonville, FL 322241619964905
- Marie Deruyter, M.D.Jacksonville, FL 322241164419453
- Neil Feinglass, MDJacksonville, FL 322241063409357
- Roy Greengrass, MDJacksonville, FL 322241699762989
- Barry Harrison, MDJacksonville, FL 322241417944703
Common questions
What is Benjamin Fredrick Gruenbaum, M.D., PH.D.'s NPI number?
Benjamin Fredrick Gruenbaum, M.D., PH.D.'s National Provider Identifier (NPI) is 1184061749, issued on May 22, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Benjamin Fredrick Gruenbaum, M.D., PH.D. located?
The NPPES record lists a practice address at 4500 San Pablo RD S, Jacksonville, FL, 32224. Phone: (904) 953-2000. Providers update this record themselves, so call before visiting.
How can I verify Benjamin Fredrick Gruenbaum, M.D., PH.D.'s license?
NPPES lists Florida license number ME145904, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Benjamin Fredrick Gruenbaum, M.D., PH.D.'s MIPS final score?
The 2023 MIPS final score is 76.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.