2026 NPPES data MOHS-Micrographic Surgery Physician NPI 1790158012 D.O.
Verify on CMS →

JOSEPH PROHASKA, D.O.

MOHS-Micrographic Surgery Physician in MORRISTOWN, Tennessee. 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 · 653 beneficiaries · MOHS-Micrographic Surgery Physician avg: 607
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.3K
91 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JOSEPH PROHASKA, D.O. filed 1,532 Medicare Part D claims in 2023 as a MOHS-Micrographic Surgery Physician in MORRISTOWN, Tennessee, prescribing 95% generic.

2K
Part D claims, 2023
95%
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.

JOSEPH PROHASKA, D.O.'s Medicare Part D volume vs every U.S. prescriber

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

1,532 Top 19% higher than 81% 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%). This entry sits in this band. 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)

JOSEPH PROHASKA, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — 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 JOSEPH PROHASKA, D.O.?

Quality data not reported

NPI registry status

Active

Issued 11/09/2015

NPI 1790158012

Primary specialty

MOHS-Micrographic Surgery Physician

Niche

1,102 US NPIs in this specialty

Medicare Part D claims

1,532 152% vs specialty avg

2023 prescription claims

Specialty avg: 607

Specialty distribution in Tennessee

How MOHS-Micrographic Surgery Physician compares to other specialties among Tennessee providers

Tennessee providers

MOHS-Micrographic Surgery Physician share within Tennessee

1. MOHS-Micrographic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
MOHS-Micrographic Surgery Physician share within Tennessee

Specialty board-certification context

Estimated specialty board-certified rate — MOHS-Micrographic Surgery Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
MOHS-Micrographic Surgery Physician ABMS/AOA estimate

Est. board-certified rate (MOHS-Micrographic Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (MOHS-Micrographic Surgery 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).

JOSEPH PROHASKA, D.O. appears in the CMS NPPES registry as a MOHS-Micrographic Surgery Physician provider holding D.O. credentials at 1907 W MORRIS BLVD STE G, MORRISTOWN, TN, 37813, with a listed phone of (423) 318-0014. NPI 1790158012 was issued on 11/09/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PROHASKA 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 1,532 prescription claims written by this provider, covering 653 Medicare beneficiaries and totaling roughly $464K in drug spend, split 5% brand-name and 95% 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.

MOHS-Micrographic Surgery Physician is a narrow specialty nationwide, with 1,102 enrolled providers across 52 states and an average of 607 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

1907 W MORRIS BLVD STE G
MORRISTOWN, TN 37813

Provider Details

NPI 1790158012
Specialty MOHS-Micrographic Surgery Physician
Credentials D.O.
Gender Male
NPI Issued 11/09/2015

Hospital and facility affiliations

Facilities where JOSEPH PROHASKA, D.O. 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.

HEALTHSTAR PHYSICIANS PC
MORRISTOWN, TN

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 JOSEPH PROHASKA, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$2.3K

Largest payer

Lilly USA, LLC

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.

Brand vs generic prescribing mix · Generic-heavy

JOSEPH PROHASKA, D.O. — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 1,532 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.

1,532
Total Claims
$464K
Total Drug Cost
653
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,586
Total Day Supply
34,214
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$429K
Generic Drug Cost
$35K
Antibiotic Claims
295

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.41
Gender Split
45% female / 55% male
Age Distribution
<65: 92, 65-74: 292, 75-84: 216, 85+: 53

Top Prescribed Drugs (Medicare Part D)

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

What JOSEPH PROHASKA, D.O. 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
Mupirocin
570
Ketoconazole
191
Doxycycline Hyclate
143
Cephalexin
114
Triamcinolone Acetonide
82
Clobetasol Propionate
80
Fluocinolone Acetonide
70
Hydrocortisone
33
Clindamycin Phosphate
22
Ciclopirox
20

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

MOHS-Micrographic Surgery Physician Overview

How JOSEPH PROHASKA, D.O. fits within the MOHS-Micrographic Surgery Physician landscape nationally.

1,102
MOHS-Micrographic Surgery Physician Providers in US
52
States with MOHS-Micrographic Surgery Physician
607
Avg Claims per Provider

JOSEPH PROHASKA, D.O.'s 1,532 claims are above the specialty average of 607.

Nearby MOHS-Micrographic Surgery Physician Providers in Tennessee

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

Compare MOHS-Micrographic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOSEPH PROHASKA, D.O.'s specialty?
JOSEPH PROHASKA, D.O. specializes in MOHS-Micrographic Surgery Physician and practices in MORRISTOWN, Tennessee. Credentials: D.O..
How much does JOSEPH PROHASKA, D.O. prescribe under Medicare Part D?
In 2023, JOSEPH PROHASKA, D.O. wrote 1,532 Medicare Part D claims totaling $464K in drug costs for 653 beneficiaries.
Where is JOSEPH PROHASKA, D.O. located?
JOSEPH PROHASKA, D.O. is located at 1907 W MORRIS BLVD STE G, MORRISTOWN, TN, 37813. Phone: (423) 318-0014.
What is JOSEPH PROHASKA, D.O.'s NPI number?
JOSEPH PROHASKA, D.O.'s National Provider Identifier (NPI) is 1790158012, issued on 11/09/2015.
Does JOSEPH PROHASKA, D.O. prescribe more brand-name or generic drugs?
JOSEPH PROHASKA, D.O.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $429K in brand drug costs.
How many MOHS-Micrographic Surgery Physician providers are there in the US?
There are 1,102 MOHS-Micrographic Surgery Physician providers across 52 states in the US. The average MOHS-Micrographic Surgery Physician provider writes 607 Medicare Part D claims per year.
What drugs does JOSEPH PROHASKA, D.O. prescribe most often?
Based on 2023 Medicare Part D data, JOSEPH PROHASKA, D.O.'s most frequently prescribed drugs include Mupirocin, Ketoconazole, Doxycycline Hyclate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSEPH PROHASKA, D.O. accept Medicare?
JOSEPH PROHASKA, D.O. appears in CMS Medicare data with 1,532 Part D claims and 653 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSEPH PROHASKA, D.O.'s credentials?
JOSEPH PROHASKA, D.O.'s NPI is 1790158012 with credentials D.O.. 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