NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1104840842 MD
Verify on CMS → Michael Herring, MD
Internal Medicine Physician in Bozeman, Montana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 174,792 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
9K
Medicare Part D claims · 616 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
90%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Michael Herring, MD filed 8,512 Medicare Part D claims in 2024 as an Internal Medicine Physician in Bozeman, Montana, prescribing 90% generic.
- 9K
- Part D claims, 2024
- 90%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥97th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Michael Herring, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1104840842), first enumerated 07/26/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 8,512 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1104840842 · Internal Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1104840842
- ENUM-LEGACY 2006
- TAX-MEGA 175K Internal Medicine
- RX-MID 8,512
- BOOK-THIN 394 in Montana
- PHOTO-ENUM Rajindra Bhat, MD · 2006
Michael Herring, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
8,512 ≥ 97th percentile 97% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Michael Herring, MD 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 Michael Herring, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
8,512 206% vs specialty avg
Specialty distribution in Montana
How Internal Medicine Physician compares to other specialties among Montana providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Internal Medicine Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1104840842 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/26/2006 |
Hospital and facility affiliations
Facilities where Michael Herring, MD 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).
Brand vs generic prescribing mix · Generic-heavy
Michael Herring, MD - brand share 9.0%
Internal Medicine Physician average
9% brand-name claims vs 90% generic, on 8,512 2024 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 2024.
8,512
Total Claims
$843K
Total Drug Cost
616
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 18,454.4
- Total Day Supply
- 539,349
- Brand vs Generic
- 9% brand / 90% generic
- Brand Drug Cost
- $694K
- Generic Drug Cost
- $146K
- Opioid Claims
- 308 (3.6% rate)
- Antibiotic Claims
- 123
Patient Demographics
- Average Patient Age
- 77.3 years
- Avg HCC Risk Score
- 1.09
- Gender Split
- 40% female / 60% male
- Age Distribution
- <65: 19, 65-74: 211, 75-84: 261, 85+: 125
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Michael Herring, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
651 claims
- Levothyroxine Sodium
Levothyroxine Sodium
424 claims
- Amlodipine Besylate
Amlodipine Besylate
385 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
329 claims
- Losartan Potassium
Losartan Potassium
301 claims
- Eliquis 245
Eliquis
245 claims
- Gabapentin 222
Gabapentin
222 claims
- Tamsulosin Hcl 209
Tamsulosin Hcl
209 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 651 |
| Levothyroxine Sodium | 424 |
| Amlodipine Besylate | 385 |
| Rosuvastatin Calcium | 329 |
| Losartan Potassium | 301 |
| Eliquis Apixaban | 245 |
| Gabapentin | 222 |
| Tamsulosin Hcl | 209 |
| Metoprolol Succinate | 186 |
| Hydrochlorothiazide | 182 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Michael Herring, MD fits within the Internal Medicine Physician landscape nationally.
174,792
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,785
Avg Claims per Provider
Michael Herring, MD's 8,512 claims are above the specialty average of 2,785.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Herring, both outside Montana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in Montana
Other clinicians with the same primary specialty enrolled in Montana, drawn from the same CMS NPPES roster as Herring.
One of 394 Internal Medicine Physician providers enrolled in Montana, 5 are shown here.
Dr. Farnaz Abbasimoradi
MD
Billings, MT
Dr. Ryan Adams
MD
Missoula, MT
Dr. Timothy Adams
MD
Bozeman, MT
Dr. Thomas Addison
MD
Great Falls, MT
Dr. Yee Chuan Ang
M.D.
Billings, MT
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Michael Herring, MD's specialty? ▼
Michael Herring, MD specializes in Internal Medicine Physician and practices in Bozeman, Montana. Credentials: MD.
How much does Michael Herring, MD prescribe under Medicare Part D? ▼
In 2024, Michael Herring, MD wrote 8,512 Medicare Part D claims totaling $843K in drug costs for 616 beneficiaries.
Where is Michael Herring, MD located? ▼
Michael Herring, MD is located at 937 HIGHLAND BLVD STE 5410, Bozeman, MT, 59715. Phone: (406) 414-2400.
What is Michael Herring, MD's NPI number? ▼
Michael Herring, MD's National Provider Identifier (NPI) is 1104840842, issued on 07/26/2006.
Does Michael Herring, MD prescribe more brand-name or generic drugs? ▼
Michael Herring, MD's prescribing is 9% brand-name and 90% generic drugs by claim count, with $694K in brand drug costs.
Does Michael Herring, MD prescribe opioids? ▼
Yes, Michael Herring, MD had 308 opioid claims in 2024 with an opioid prescribing rate of 3.6%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 174,792 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,785 Medicare Part D claims per year.
What drugs does Michael Herring, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Michael Herring, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Herring, MD accept Medicare? ▼
Michael Herring, MD appears in CMS Medicare data with 8,512 Part D claims and 616 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Herring, MD's credentials? ▼
Michael Herring, MD's NPI is 1104840842 with credentials MD. 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.