2026 NPPES data Internal Medicine Physician NPI 1215952999 MD
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Mayer Fishman, MD

Internal Medicine Physician in Tampa, Florida. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 167 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.7K
11 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Mayer Fishman, MD filed 1,355 Medicare Part D claims in 2023 as a Internal Medicine Physician in Tampa, Florida, prescribing 56% generic.

1K
Part D claims, 2023
56%
generic prescribing
Likely
board-certified (heuristic)

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.

Mayer Fishman, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,355 Top 21% higher than 79% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). This entry sits in this band. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

Mayer Fishman, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 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 Mayer Fishman, MD?

Quality data not reported

NPI registry status

Active

Issued 07/13/2006

NPI 1215952999

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,355 50% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Florida

How Internal Medicine Physician compares to other specialties among Florida providers

Florida providers

Internal Medicine Physician share within Florida

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Florida

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

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).

Mayer Fishman, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 12902 USF MAGNOLIA DR, Tampa, FL, 33612, with a listed phone of (813) 745-8343. NPI 1215952999 was issued on 07/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Fishman most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,355 prescription claims written by this provider, covering 167 Medicare beneficiaries and totaling roughly $6.8 million in drug spend, split 44% brand-name and 56% generic by claim count, with an opioid prescribing rate of 8.7%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

12902 USF MAGNOLIA DR
Tampa, FL 33612

Provider Details

NPI 1215952999
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 07/13/2006

Hospital and facility affiliations

Facilities where Mayer Fishman, 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.

Cancer Center OF South Florida PLLC
Riverview, FL
Tampa General Medical Group Inc
Tampa, FL

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mayer Fishman, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.7K

Largest payer

PFIZER INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 Mayer Fishman, MD. To verify Mayer Fishman, 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.

Brand vs generic prescribing mix · Above average

Mayer Fishman, MD — brand share 44.0%
Specialty average (est.)

44% brand-name claims vs 56% generic, on 1,355 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,355
Total Claims
$6.8M
Total Drug Cost
167
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,590
Total Day Supply
43,843
Brand vs Generic
44% brand / 56% generic
Brand Drug Cost
$6.5M
Generic Drug Cost
$333K
Opioid Claims
118 (8.7% rate)
Antibiotic Claims
23

Patient Demographics

Average Patient Age
71.2 years
Avg HCC Risk Score
2.97
Gender Split
11% female / 89% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Mayer Fishman, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Orgovyx
Relugolix
141
Xtandi
Enzalutamide
123
Abiraterone Acetate
107
Nubeqa
Darolutamide
47
Prednisone
39
Dexamethasone
37
Inlyta
Axitinib
37
Erleada
Apalutamide
36
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
32
Ondansetron Odt
Ondansetron
30

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How Mayer Fishman, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Mayer Fishman, MD's 1,355 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Florida

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

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Florida medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Mayer Fishman, MD's specialty?
Mayer Fishman, MD specializes in Internal Medicine Physician and practices in Tampa, Florida. Credentials: MD.
How much does Mayer Fishman, MD prescribe under Medicare Part D?
In 2023, Mayer Fishman, MD wrote 1,355 Medicare Part D claims totaling $6.8M in drug costs for 167 beneficiaries.
Where is Mayer Fishman, MD located?
Mayer Fishman, MD is located at 12902 USF MAGNOLIA DR, Tampa, FL, 33612. Phone: (813) 745-8343.
What is Mayer Fishman, MD's NPI number?
Mayer Fishman, MD's National Provider Identifier (NPI) is 1215952999, issued on 07/13/2006.
Does Mayer Fishman, MD prescribe more brand-name or generic drugs?
Mayer Fishman, MD's prescribing is 44% brand-name and 56% generic drugs by claim count, with $6.5M in brand drug costs.
Does Mayer Fishman, MD prescribe opioids?
Yes, Mayer Fishman, MD had 118 opioid claims in 2023 with an opioid prescribing rate of 8.7%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Mayer Fishman, MD prescribe most often?
Based on 2023 Medicare Part D data, Mayer Fishman, MD's most frequently prescribed drugs include Orgovyx, Xtandi, Abiraterone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mayer Fishman, MD accept Medicare?
Mayer Fishman, MD appears in CMS Medicare data with 1,355 Part D claims and 167 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mayer Fishman, MD's credentials?
Mayer Fishman, MD's NPI is 1215952999 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

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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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