2026 NPPES data Specialist NPI 1972599827 M.D.
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MARK BAKER, M.D.

Specialist in RIVERVIEW, 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
2K
Medicare Part D claims · 655 beneficiaries · Specialist avg: 1K
Industry payments
$11.8K
75 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MARK BAKER, M.D. filed 2,085 Medicare Part D claims in 2023 as a Specialist in RIVERVIEW, Florida.

2K
Part D claims, 2023
$11.8K
industry payments (Sunshine Act)

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.

MARK BAKER, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

2,085 Top 16% higher than 84% 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%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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

What does the federal data show about MARK BAKER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 09/26/2005

NPI 1972599827

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

2,085 41% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Florida

How Specialist compares to other specialties among Florida providers

Florida providers

Specialist share within Florida

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Florida

Specialty board-certification context

Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)

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

Est. board-certified rate (Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Specialist) — 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).

MARK BAKER, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 6043 WINTHROP COMMERCE AVE, RIVERVIEW, FL, 33578, with a listed phone of (813) 685-0827. NPI 1972599827 was issued on 09/26/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAKER 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 2,085 prescription claims written by this provider, covering 655 Medicare beneficiaries and totaling roughly $415K in drug spend, with an opioid prescribing rate of 3.2%. 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

6043 WINTHROP COMMERCE AVE
RIVERVIEW, FL 33578

Provider Details

NPI 1972599827
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 09/26/2005

Hospital and facility affiliations

Facilities where MARK BAKER, M.D. 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.

FLORIDA UROLOGY PARTNERS LLP
BRANDON, 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 MARK BAKER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$11.8K

Largest payer

INTUITIVE SURGICAL, 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 MARK BAKER, M.D.. To verify MARK BAKER, M.D.'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.

Medicare Part D Prescribing Data

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

2,085
Total Claims
$415K
Total Drug Cost
655
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,732
Total Day Supply
132,317
Generic Drug Cost
$76K
Opioid Claims
66 (3.2% rate)
Antibiotic Claims
414

Patient Demographics

Average Patient Age
75.4 years
Avg HCC Risk Score
1.92
Gender Split
35% female / 65% male
Age Distribution
<65: 33, 65-74: 252, 75-84: 291, 85+: 79

Top Prescribed Drugs (Medicare Part D)

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

What MARK BAKER, M.D. 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
Finasteride
363
Tamsulosin Hcl
258
Myrbetriq
Mirabegron
176
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
145
Methenamine Hippurate
124
Dutasteride
87
Solifenacin Succinate
74
Ciprofloxacin Hcl
63
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
63
Cefdinir
62

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

Specialist Overview

How MARK BAKER, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

MARK BAKER, M.D.'s 2,085 claims are above the specialty average of 1,474.

Nearby Specialist Providers in Florida

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARK BAKER, M.D.'s specialty?
MARK BAKER, M.D. specializes in Specialist and practices in RIVERVIEW, Florida. Credentials: M.D..
How much does MARK BAKER, M.D. prescribe under Medicare Part D?
In 2023, MARK BAKER, M.D. wrote 2,085 Medicare Part D claims totaling $415K in drug costs for 655 beneficiaries.
Where is MARK BAKER, M.D. located?
MARK BAKER, M.D. is located at 6043 WINTHROP COMMERCE AVE, RIVERVIEW, FL, 33578. Phone: (813) 685-0827.
What is MARK BAKER, M.D.'s NPI number?
MARK BAKER, M.D.'s National Provider Identifier (NPI) is 1972599827, issued on 09/26/2005.
Does MARK BAKER, M.D. prescribe opioids?
Yes, MARK BAKER, M.D. had 66 opioid claims in 2023 with an opioid prescribing rate of 3.2%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does MARK BAKER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARK BAKER, M.D.'s most frequently prescribed drugs include Finasteride, Tamsulosin Hcl, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARK BAKER, M.D. accept Medicare?
MARK BAKER, M.D. appears in CMS Medicare data with 2,085 Part D claims and 655 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARK BAKER, M.D.'s credentials?
MARK BAKER, M.D.'s NPI is 1972599827 with credentials M.D.. 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