2026 NPPES data Diagnostic Radiology Physician NPI 1346701687 MD
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Michael Groswald, MD

Diagnostic Radiology Physician in Jacksonville, Florida.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 39,551 in Diagnostic Radiology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.

What the federal data shows

Michael Groswald, MD is a Diagnostic Radiology Physician in Jacksonville, Florida, listed in the federal CMS National Provider Identifier registry.

Likely
board-certified (heuristic)
#39
Diagnostic Radiology Physician rank among Florida specialties

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

CMS NPPES provider registry desk

NPI 1346701687 · Diagnostic Radiology Physician

NPI-10 · ENUM-RECENT · TAX-MID · RX-NONE · BOOK-LIGHT · PHOTO-ENUM

  • NPI-10 1346701687
  • ENUM-RECENT 2019
  • TAX-MID 40K Diagnostic Radiology
  • RX-NONE No Part D
  • BOOK-LIGHT 2,412 in Florida
  • PHOTO-ENUM Thomas Battey · 2019
Board certification likely (heuristic, not verified)

Michael Groswald, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Michael Groswald, MD?

Quality data not reported

NPI registry status

Active

Issued 03/28/2019

NPI 1346701687

Primary specialty

Diagnostic Radiology Physician

Mid-sized

39,551 US NPIs in this specialty

Specialty distribution in Florida

How Diagnostic Radiology Physician compares to other specialties among Florida providers

Florida providers
Behavior Technician16.1%Mental Health Counselor4.8%Family Nurse Practitioner4.5%Pharmacist4.2%Student in an Organized Heal…3.8%Physical Therapist3.1%Diagnostic Radiology Physici…0.5%
Largest specialties in Florida (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Diagnostic Radiology Physician. Verify directly:

How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Practice Address

4500 SAN PABLO RD S
Jacksonville, FL 32224

Provider Details

NPI 1346701687
Specialty Diagnostic Radiology Physician
Credentials MD
Gender Male
NPI Issued 03/28/2019

Hospital and facility affiliations

Facilities where Michael Groswald, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

According to CMS billing records, Michael Groswald, MD is affiliated with 3 Medicare-billing facilities across 2 states, 1 of which carry a CMS Hospital overall star rating.

Decatur County Memorial Hospital
★★★☆☆ 3/5
Greensburg, IN
Critical Access Hospitals
CMS CCN: 151332
Mayo Clinic Jacksonville
Jacksonville, FL
Radiology OF Indiana P C
Indianapolis, IN

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context - Florida FLDOH 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 - they are NOT specific to Michael Groswald, MD. To verify Michael Groswald, MD's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Diagnostic Radiology Physician Overview

How Michael Groswald, MD fits within the Diagnostic Radiology Physician landscape nationally.

39,551
Diagnostic Radiology Physician Providers in US
56
States with Diagnostic Radiology Physician
63
Avg Claims per Provider

Nationwide Diagnostic Radiology Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Groswald, both outside Florida so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2019)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Diagnostic Radiology Physician Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Groswald.

One of 2,412 Diagnostic Radiology Physician providers enrolled in Florida, 5 are shown here.

Compare Diagnostic Radiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Michael Groswald, MD's specialty?
Michael Groswald, MD specializes in Diagnostic Radiology Physician and practices in Jacksonville, Florida. Credentials: MD.
Where is Michael Groswald, MD located?
Michael Groswald, MD is located at 4500 SAN PABLO RD S, Jacksonville, FL, 32224. Phone: (904) 953-2000.
What is Michael Groswald, MD's NPI number?
Michael Groswald, MD's National Provider Identifier (NPI) is 1346701687, issued on 03/28/2019.
How many Diagnostic Radiology Physician providers are there in the US?
There are 39,551 Diagnostic Radiology Physician providers across 56 states in the US. The average Diagnostic Radiology Physician provider writes 63 Medicare Part D claims per year.
Does Michael Groswald, MD accept Medicare?
Michael Groswald, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Groswald, MD's credentials?
Michael Groswald, MD's NPI is 1346701687 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.