2026 NPPES data Obesity Medicine (Internal Medicine) Physician NPI 1003132887 M.D.
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NATHAN ALLISON, M.D.

Obesity Medicine (Internal Medicine) Physician in MELBOURNE, 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
362
Medicare Part D claims · 158 beneficiaries · Obesity Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.3855/100
▲ 2 pts above national avg 83.1 · [object Object]
Industry payments
$627.77
4 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: NATHAN ALLISON, M.D. is a Obesity Medicine (Internal Medicine) Physician ([object Object]) practicing in MELBOURNE, Florida with a Medicare Part D prescribing footprint of 362 claims across 158 beneficiaries — 5% brand-name prescribing . Their CMS MIPS Final Score of 85.3855/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $627.77 across 4 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: NATHAN ALLISON, M.D. reported a CMS MIPS final score of 85.3855 out of 100, above the 83.1 national average, and filed 362 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NATHAN ALLISON, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

NATHAN ALLISON, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 04/19/2010

NPI 1003132887

Primary specialty

Obesity Medicine (Internal Medicine) Physician

Rare

142 US NPIs in this specialty

Medicare Part D claims

362 65% vs specialty avg

2023 prescription claims

Specialty avg: 1,046

MIPS final score

85.3855/100 2.285499999999999% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Florida

How Obesity Medicine (Internal Medicine) Physician compares to other specialties among Florida providers

Florida providers

Obesity Medicine (Internal Medicine) Physician share within Florida

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

Medicare quality performance — MIPS

NATHAN ALLISON, M.D.'s 2023 MIPS final score plotted against the Obesity Medicine (Internal Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
85.3855/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Obesity Medicine (Internal Medicine) Physician) — 85.3855/100 vs national avg 83.1

0%100%National avg83%85.4%
MIPS final score (Obesity Medicine (Internal Medicine) Physician) — 85.3855/100 vs national avg 83.1

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).

NATHAN ALLISON, M.D. is a Obesity Medicine (Internal Medicine) Physician provider practicing in MELBOURNE, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1003132887. 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.

NATHAN ALLISON, M.D. appears in the CMS NPPES registry as a Obesity Medicine (Internal Medicine) Physician provider holding M.D. credentials at 8725 N WICKHAM RD, MELBOURNE, FL, 32940, with a listed phone of (321) 434-9230. NPI 1003132887 was issued on 04/19/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALLISON 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 362 prescription claims written by this provider, covering 158 Medicare beneficiaries and totaling roughly $17K in drug spend, split 5% brand-name and 95% generic by claim count, with an opioid prescribing rate of 5.8%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.3855/100 for the 2023 performance year (Quality 81.653), compared with the national average of 83.1.

Obesity Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 142 enrolled providers across 36 states and an average of 1,046 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

8725 N WICKHAM RD
MELBOURNE, FL 32940

Provider Details

NPI 1003132887
Specialty Obesity Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 04/19/2010

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

85.3855
Final Score
Avg: 83.1
81.653
Quality
78
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where NATHAN ALLISON, 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.

HEALTH FIRST MEDICAL GROUP, LLC
PALM BAY, 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 NATHAN ALLISON, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$628

Largest payer

Ethicon 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 NATHAN ALLISON, M.D.. To verify NATHAN ALLISON, 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.

Brand vs generic prescribing mix · Generic-heavy

NATHAN ALLISON, M.D. — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 362 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.

362
Total Claims
$17K
Total Drug Cost
158
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
709
Total Day Supply
19,195
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$8K
Generic Drug Cost
$8K
Opioid Claims
21 (5.8% rate)
Antibiotic Claims
19

Patient Demographics

Average Patient Age
70.3 years
Avg HCC Risk Score
1.27
Gender Split
70% female / 30% 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
Omeprazole
155
Sucralfate
41
Pantoprazole Sodium
39
Ondansetron Odt
Ondansetron
17
Prednisone
11

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

Obesity Medicine (Internal Medicine) Physician Overview

How NATHAN ALLISON, M.D. fits within the Obesity Medicine (Internal Medicine) Physician landscape nationally.

142
Obesity Medicine (Internal Medicine) Physician Providers in US
36
States with Obesity Medicine (Internal Medicine) Physician
1,046
Avg Claims per Provider

NATHAN ALLISON, M.D.'s 362 claims are below the specialty average of 1,046.

Nearby Obesity Medicine (Internal Medicine) Physician Providers in Florida

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

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

Frequently Asked Questions

What is NATHAN ALLISON, M.D.'s specialty?
NATHAN ALLISON, M.D. specializes in Obesity Medicine (Internal Medicine) Physician and practices in MELBOURNE, Florida. Credentials: M.D..
How much does NATHAN ALLISON, M.D. prescribe under Medicare Part D?
In 2023, NATHAN ALLISON, M.D. wrote 362 Medicare Part D claims totaling $17K in drug costs for 158 beneficiaries.
What is NATHAN ALLISON, M.D.'s Medicare quality score?
NATHAN ALLISON, M.D. has a CMS MIPS Final Score of 85.3855/100 (Quality: 81.653). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is NATHAN ALLISON, M.D. located?
NATHAN ALLISON, M.D. is located at 8725 N WICKHAM RD, MELBOURNE, FL, 32940. Phone: (321) 434-9230.
What is NATHAN ALLISON, M.D.'s NPI number?
NATHAN ALLISON, M.D.'s National Provider Identifier (NPI) is 1003132887, issued on 04/19/2010.
Does NATHAN ALLISON, M.D. prescribe more brand-name or generic drugs?
NATHAN ALLISON, M.D.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $8K in brand drug costs.
Does NATHAN ALLISON, M.D. prescribe opioids?
Yes, NATHAN ALLISON, M.D. had 21 opioid claims in 2023 with an opioid prescribing rate of 5.8%.
How many Obesity Medicine (Internal Medicine) Physician providers are there in the US?
There are 142 Obesity Medicine (Internal Medicine) Physician providers across 36 states in the US. The average Obesity Medicine (Internal Medicine) Physician provider writes 1,046 Medicare Part D claims per year.
What drugs does NATHAN ALLISON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NATHAN ALLISON, M.D.'s most frequently prescribed drugs include Omeprazole, Sucralfate, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NATHAN ALLISON, M.D. accept Medicare?
NATHAN ALLISON, M.D. appears in CMS Medicare data with 362 Part D claims and 158 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NATHAN ALLISON, M.D.'s credentials?
NATHAN ALLISON, M.D.'s NPI is 1003132887 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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