2026 NPPES data Gerontology Nurse Practitioner NPI 1891241535 ARNP
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MARILYN BELLAMY, ARNP

Gerontology Nurse Practitioner in ST PETERSBURG, 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
212
Medicare Part D claims · 41 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$21.7
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARILYN BELLAMY, ARNP is a Gerontology Nurse Practitioner ([object Object]) practicing in ST PETERSBURG, Florida with a Medicare Part D prescribing footprint of 212 claims across 41 beneficiaries — 12% brand-name prescribing . Industry payments of $21.7 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARILYN BELLAMY, ARNP filed 212 Medicare Part D claims in 2023 across ST PETERSBURG, Florida. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MARILYN BELLAMY, ARNP at a glance

Quality data not reported

NPI registry status

Active

Issued 09/01/2016

NPI 1891241535

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

212 83% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

Specialty distribution in Florida

How Gerontology Nurse Practitioner compares to other specialties among Florida providers

Florida providers

Gerontology Nurse Practitioner share within Florida

1. Gerontology Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gerontology Nurse Practitioner share within Florida

Specialty board-certification context

Estimated specialty board-certified rate — Gerontology Nurse Practitioner (ABMS / AOA reference)

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

Est. board-certified rate (Gerontology Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gerontology Nurse Practitioner) — 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).

MARILYN BELLAMY, ARNP is a Gerontology Nurse Practitioner provider practicing in ST PETERSBURG, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: ARNP. NPI: 1891241535. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MARILYN BELLAMY, ARNP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding ARNP credentials at 4627 1ST AVE N, ST PETERSBURG, FL, 33713, with a listed phone of (727) 215-4037. NPI 1891241535 was issued on 09/01/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BELLAMY 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 212 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $13K in drug spend, split 12% brand-name and 88% generic by claim count. 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.

Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,625 enrolled providers across 54 states and an average of 1,283 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

4627 1ST AVE N
ST PETERSBURG, FL 33713

Provider Details

NPI 1891241535
Specialty Gerontology Nurse Practitioner
Credentials ARNP
Gender Female
NPI Issued 09/01/2016

Hospital and facility affiliations

Facilities where MARILYN BELLAMY, ARNP 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.

CARDIAC VISION LLC
JACKSONVILLE, 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 MARILYN BELLAMY, ARNP. Source: openpaymentsdata.cms.gov.

Total received

$22

Largest payer

Smith+Nephew, 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 MARILYN BELLAMY, ARNP. To verify MARILYN BELLAMY, ARNP'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 · Typical

MARILYN BELLAMY, ARNP — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 212 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.

212
Total Claims
$13K
Total Drug Cost
41
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
212
Total Day Supply
4,983
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$2K
Generic Drug Cost
$11K

Patient Demographics

Average Patient Age
80.3 years
Avg HCC Risk Score
3.07
Gender Split
61% female / 39% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Furosemide
13
Gabapentin
13
Prednisone
12

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

Gerontology Nurse Practitioner Overview

How MARILYN BELLAMY, ARNP fits within the Gerontology Nurse Practitioner landscape nationally.

9,625
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider

MARILYN BELLAMY, ARNP's 212 claims are below the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in Florida

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

Compare Gerontology Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARILYN BELLAMY, ARNP's specialty?
MARILYN BELLAMY, ARNP specializes in Gerontology Nurse Practitioner and practices in ST PETERSBURG, Florida. Credentials: ARNP.
How much does MARILYN BELLAMY, ARNP prescribe under Medicare Part D?
In 2023, MARILYN BELLAMY, ARNP wrote 212 Medicare Part D claims totaling $13K in drug costs for 41 beneficiaries.
Where is MARILYN BELLAMY, ARNP located?
MARILYN BELLAMY, ARNP is located at 4627 1ST AVE N, ST PETERSBURG, FL, 33713. Phone: (727) 215-4037.
What is MARILYN BELLAMY, ARNP's NPI number?
MARILYN BELLAMY, ARNP's National Provider Identifier (NPI) is 1891241535, issued on 09/01/2016.
Does MARILYN BELLAMY, ARNP prescribe more brand-name or generic drugs?
MARILYN BELLAMY, ARNP's prescribing is 12% brand-name and 88% generic drugs by claim count, with $2K in brand drug costs.
How many Gerontology Nurse Practitioner providers are there in the US?
There are 9,625 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does MARILYN BELLAMY, ARNP prescribe most often?
Based on 2023 Medicare Part D data, MARILYN BELLAMY, ARNP's most frequently prescribed drugs include Furosemide, Gabapentin, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARILYN BELLAMY, ARNP accept Medicare?
MARILYN BELLAMY, ARNP appears in CMS Medicare data with 212 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARILYN BELLAMY, ARNP's credentials?
MARILYN BELLAMY, ARNP's NPI is 1891241535 with credentials ARNP. 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