2026 NPPES data Infectious Disease Physician NPI 1578069498
Verify on CMS →

DAVIS MANN

Infectious Disease Physician in BILLINGS, 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
311
Medicare Part D claims · 51 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
61%
generic claims · 39% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.3056/100
▲ 11 pts above national avg 83.1 · [object Object]
Industry payments
$150
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DAVIS MANN is a Infectious Disease Physician ([object Object]) practicing in BILLINGS, Montana with a Medicare Part D prescribing footprint of 311 claims across 51 beneficiaries — 39% brand-name prescribing . Their CMS MIPS Final Score of 94.3056/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $150 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DAVIS MANN reported a CMS MIPS final score of 94.3056 out of 100, above the 83.1 national average, and filed 311 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)

DAVIS MANN 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).

DAVIS MANN at a glance

High performer (top quartile)

NPI registry status

Active

Issued 03/30/2018

NPI 1578069498

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

311 62% vs specialty avg

2023 prescription claims

Specialty avg: 816

MIPS final score

94.3056/100 11.205600000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Montana

How Infectious Disease Physician compares to other specialties among Montana providers

Montana providers

Infectious Disease Physician share within Montana

1. Infectious Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Infectious Disease Physician share within Montana

Medicare quality performance — MIPS

DAVIS MANN's 2023 MIPS final score plotted against the Infectious Disease Physician national average

High performer (top quartile)
MIPS Final Score
94.3056/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Infectious Disease Physician) — 94.3056/100 vs national avg 83.1

0%100%National avg83%94.3%
MIPS final score (Infectious Disease Physician) — 94.3056/100 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).

DAVIS MANN is a Infectious Disease Physician provider practicing in BILLINGS, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1578069498. 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.

DAVIS MANN appears in the CMS NPPES registry as a Infectious Disease Physician provider at 801 N 29TH ST, BILLINGS, MT, 59101, with a listed phone of (406) 238-2500. NPI 1578069498 was issued on 03/30/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MANN 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 311 prescription claims written by this provider, covering 51 Medicare beneficiaries and totaling roughly $464K in drug spend, split 39% brand-name and 61% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.3056/100 for the 2023 performance year (Quality 85.5889), compared with the national average of 83.1.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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

801 N 29TH ST
BILLINGS, MT 59101

Provider Details

NPI 1578069498
Specialty Infectious Disease Physician
Gender Male
NPI Issued 03/30/2018

CMS Quality Score (MIPS)

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

94.3056
Final Score
Avg: 83.1
85.5889
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where DAVIS MANN 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.

BILLINGS CLINIC
★★★★☆ 4/5
BILLINGS, MT
Acute Care Hospitals
CMS CCN: 270004

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 DAVIS MANN. Source: openpaymentsdata.cms.gov.

Total received

$150

Largest payer

AngioDynamics, 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 · Above average

DAVIS MANN — brand share 39.0%
Specialty average (est.)

39% brand-name claims vs 61% generic, on 311 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.

311
Total Claims
$464K
Total Drug Cost
51
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
338
Total Day Supply
8,253
Brand vs Generic
39% brand / 61% generic
Brand Drug Cost
$445K
Generic Drug Cost
$19K
Antibiotic Claims
117

Patient Demographics

Average Patient Age
68.1 years
Avg HCC Risk Score
2.39
Gender Split
25% female / 75% male
Age Distribution
<65: 15, 65-74: 26, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
49
Rosuvastatin Calcium
27
Amlodipine Besylate
22
Cefazolin Sodium
22
Amoxicillin
19
Ertapenem
Ertapenem Sodium
17
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
12
Odefsey
Emtricitab/Rilpiviri/Tenof Ala
12
Olmesartan-Hydrochlorothiazide
Olmesartan/Hydrochlorothiazide
12

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

Infectious Disease Physician Overview

How DAVIS MANN fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

DAVIS MANN's 311 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in Montana

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

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVIS MANN's specialty?
DAVIS MANN specializes in Infectious Disease Physician and practices in BILLINGS, Montana.
How much does DAVIS MANN prescribe under Medicare Part D?
In 2023, DAVIS MANN wrote 311 Medicare Part D claims totaling $464K in drug costs for 51 beneficiaries.
What is DAVIS MANN's Medicare quality score?
DAVIS MANN has a CMS MIPS Final Score of 94.3056/100 (Quality: 85.5889). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DAVIS MANN located?
DAVIS MANN is located at 801 N 29TH ST, BILLINGS, MT, 59101. Phone: (406) 238-2500.
What is DAVIS MANN's NPI number?
DAVIS MANN's National Provider Identifier (NPI) is 1578069498, issued on 03/30/2018.
Does DAVIS MANN prescribe more brand-name or generic drugs?
DAVIS MANN's prescribing is 39% brand-name and 61% generic drugs by claim count, with $445K in brand drug costs.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does DAVIS MANN prescribe most often?
Based on 2023 Medicare Part D data, DAVIS MANN's most frequently prescribed drugs include Biktarvy, Rosuvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVIS MANN accept Medicare?
DAVIS MANN appears in CMS Medicare data with 311 Part D claims and 51 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVIS MANN's credentials?
DAVIS MANN's NPI is 1578069498. 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