2026 NPPES data Medical Physician Assistant NPI 1528193265 PA-C
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THEODORE PREISS, PA-C

Medical Physician Assistant in BOZEMAN, 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
6K
Medicare Part D claims · 488 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$69.76
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: THEODORE PREISS, PA-C is a Medical Physician Assistant ([object Object]) practicing in BOZEMAN, Montana with a Medicare Part D prescribing footprint of 6K claims across 488 beneficiaries — 9% brand-name prescribing . Industry payments of $69.76 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: THEODORE PREISS, PA-C filed 6,308 Medicare Part D claims in 2023 across BOZEMAN, Montana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

THEODORE PREISS, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 02/22/2007

NPI 1528193265

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

6,308 486% 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).

THEODORE PREISS, PA-C is a Medical Physician Assistant provider practicing in BOZEMAN, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1528193265. 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.

THEODORE PREISS, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 937 HIGHLAND BLVD STE 5410, BOZEMAN, MT, 59715, with a listed phone of (406) 414-3610. NPI 1528193265 was issued on 02/22/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PREISS 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 6,308 prescription claims written by this provider, covering 488 Medicare beneficiaries and totaling roughly $508K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 4.6%. 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

937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715

Provider Details

NPI 1528193265
Specialty Medical Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 02/22/2007

Hospital and facility affiliations

Facilities where THEODORE PREISS, 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.

BOZEMAN HEALTH DEACONESS HOSPITAL
★★★★☆ 4/5
BOZEMAN, MT
Acute Care Hospitals
CMS CCN: 270057

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 THEODORE PREISS, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$70

Largest payer

Genentech USA, 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.

Brand vs generic prescribing mix · Generic-heavy

THEODORE PREISS, PA-C — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 6,308 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.

6,308
Total Claims
$508K
Total Drug Cost
488
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
14,397
Total Day Supply
421,434
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$389K
Generic Drug Cost
$118K
Opioid Claims
291 (4.6% rate)
Antibiotic Claims
57

Patient Demographics

Average Patient Age
74.3 years
Avg HCC Risk Score
1.03
Gender Split
31% female / 69% male
Age Distribution
<65: 40, 65-74: 214, 75-84: 170, 85+: 64

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
488
Losartan Potassium
357
Rosuvastatin Calcium
349
Levothyroxine Sodium
298
Amlodipine Besylate
235
Lisinopril
235
Gabapentin
221
Omeprazole
191
Tamsulosin Hcl
167
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
148

* 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 THEODORE PREISS, 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

THEODORE PREISS, PA-C's 6,308 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 PREISS.

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

Frequently Asked Questions

What is THEODORE PREISS, PA-C's specialty?
THEODORE PREISS, PA-C specializes in Medical Physician Assistant and practices in BOZEMAN, Montana. Credentials: PA-C.
How much does THEODORE PREISS, PA-C prescribe under Medicare Part D?
In 2023, THEODORE PREISS, PA-C wrote 6,308 Medicare Part D claims totaling $508K in drug costs for 488 beneficiaries.
Where is THEODORE PREISS, PA-C located?
THEODORE PREISS, PA-C is located at 937 HIGHLAND BLVD STE 5410, BOZEMAN, MT, 59715. Phone: (406) 414-3610.
What is THEODORE PREISS, PA-C's NPI number?
THEODORE PREISS, PA-C's National Provider Identifier (NPI) is 1528193265, issued on 02/22/2007.
Does THEODORE PREISS, PA-C prescribe more brand-name or generic drugs?
THEODORE PREISS, PA-C's prescribing is 9% brand-name and 91% generic drugs by claim count, with $389K in brand drug costs.
Does THEODORE PREISS, PA-C prescribe opioids?
Yes, THEODORE PREISS, PA-C had 291 opioid claims in 2023 with an opioid prescribing rate of 4.6%.
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 THEODORE PREISS, PA-C prescribe most often?
Based on 2023 Medicare Part D data, THEODORE PREISS, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THEODORE PREISS, PA-C accept Medicare?
THEODORE PREISS, PA-C appears in CMS Medicare data with 6,308 Part D claims and 488 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THEODORE PREISS, PA-C's credentials?
THEODORE PREISS, PA-C's NPI is 1528193265 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