2026 NPPES data Medical Physician Assistant NPI 1346231289 PA-C
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TONY FANTOZZI, PA-C

Medical Physician Assistant in LIBBY, Montana. 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
5K
Medicare Part D claims · 352 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: TONY FANTOZZI, PA-C is a Medical Physician Assistant ([object Object]) practicing in LIBBY, Montana with a Medicare Part D prescribing footprint of 5K claims across 352 beneficiaries — 12% brand-name prescribing .

What stands out: TONY FANTOZZI, PA-C filed 4,820 Medicare Part D claims in 2023 across LIBBY, Montana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

TONY FANTOZZI, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 10/31/2005

NPI 1346231289

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

4,820 348% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Montana

How Medical Physician Assistant compares to other specialties among Montana providers

Montana providers

Medical Physician Assistant share within Montana

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Montana

Specialty board-certification context

Estimated specialty board-certified rate — Medical Physician Assistant (ABMS / AOA reference)

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

Est. board-certified rate (Medical Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — 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).

TONY FANTOZZI, PA-C is a Medical Physician Assistant provider practicing in LIBBY, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1346231289. 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.

TONY FANTOZZI, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 320 E 2ND ST, LIBBY, MT, 59923, with a listed phone of (406) 283-6900. NPI 1346231289 was issued on 10/31/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FANTOZZI 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 4,820 prescription claims written by this provider, covering 352 Medicare beneficiaries and totaling roughly $544K in drug spend, split 12% brand-name and 88% 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

320 E 2ND ST
LIBBY, MT 59923

Provider Details

NPI 1346231289
Specialty Medical Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 10/31/2005

Hospital and facility affiliations

Facilities where TONY FANTOZZI, PA-C 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.

PROVIDENCE ST JOSEPH MEDICAL CENTER
POLSON, MT
Critical Access Hospitals
CMS CCN: 271343
ST JOHNS LUTHERAN HOSPITAL INC
LIBBY, MT

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

Brand vs generic prescribing mix · Typical

TONY FANTOZZI, PA-C — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 4,820 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.

4,820
Total Claims
$544K
Total Drug Cost
352
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,516
Total Day Supply
274,790
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$421K
Generic Drug Cost
$120K
Opioid Claims
281 (5.8% rate)
Antibiotic Claims
45

Patient Demographics

Average Patient Age
67.0 years
Avg HCC Risk Score
1.05
Gender Split
40% female / 60% male
Age Distribution
<65: 110, 65-74: 173, 75-84: 53, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
207
Omeprazole
164
Losartan Potassium
159
Lisinopril
157
Amlodipine Besylate
155
Gabapentin
145
Rosuvastatin Calcium
139
Metformin Hcl
127
Levothyroxine Sodium
120
Celecoxib
118

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

Medical Physician Assistant Overview

How TONY FANTOZZI, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

TONY FANTOZZI, PA-C's 4,820 claims are above the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Montana

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

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is TONY FANTOZZI, PA-C's specialty?
TONY FANTOZZI, PA-C specializes in Medical Physician Assistant and practices in LIBBY, Montana. Credentials: PA-C.
How much does TONY FANTOZZI, PA-C prescribe under Medicare Part D?
In 2023, TONY FANTOZZI, PA-C wrote 4,820 Medicare Part D claims totaling $544K in drug costs for 352 beneficiaries.
Where is TONY FANTOZZI, PA-C located?
TONY FANTOZZI, PA-C is located at 320 E 2ND ST, LIBBY, MT, 59923. Phone: (406) 283-6900.
What is TONY FANTOZZI, PA-C's NPI number?
TONY FANTOZZI, PA-C's National Provider Identifier (NPI) is 1346231289, issued on 10/31/2005.
Does TONY FANTOZZI, PA-C prescribe more brand-name or generic drugs?
TONY FANTOZZI, PA-C's prescribing is 12% brand-name and 88% generic drugs by claim count, with $421K in brand drug costs.
Does TONY FANTOZZI, PA-C prescribe opioids?
Yes, TONY FANTOZZI, PA-C had 281 opioid claims in 2023 with an opioid prescribing rate of 5.8%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does TONY FANTOZZI, PA-C prescribe most often?
Based on 2023 Medicare Part D data, TONY FANTOZZI, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Omeprazole, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TONY FANTOZZI, PA-C accept Medicare?
TONY FANTOZZI, PA-C appears in CMS Medicare data with 4,820 Part D claims and 352 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TONY FANTOZZI, PA-C's credentials?
TONY FANTOZZI, PA-C's NPI is 1346231289 with credentials PA-C. 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