NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1881672756 MD
Verify on CMS → Brent Grauerholz, MD
Family Medicine Physician in Greeley, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family 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
431
Medicare Part D claims · 278 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
85%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.6/100
▲ 14 pts above national avg 83.5 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Brent Grauerholz, MD reported a CMS MIPS final score of 97.6/100 - above the 83.5 national average - and filed 431 Medicare Part D claims in 2023.
- 97.6/100
- MIPS score · +14 vs avg
- 431
- Part D claims, 2023
- 85%
- 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.
Brent Grauerholz, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
98 ≥ 84th percentile 84% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Brent Grauerholz, MD sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Brent Grauerholz, MD writes more Part D claims than 22% of them and scores higher on MIPS quality than 88% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Brent Grauerholz, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Brent Grauerholz, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Brent Grauerholz, MD?
High performer (top quartile)Primary specialty
Family Medicine Physician
Medicare Part D claims
431 87% vs specialty avg
MIPS final score
97.6/100 14.1 pts vs avg
Specialty distribution in Colorado
How Family Medicine Physician compares to other specialties among Colorado providers
Medicare quality performance, MIPS
Brent Grauerholz, MD's 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 97.6/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Family Medicine Physician) - 97.6/100 vs national avg 83.5
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).
Brent Grauerholz, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 1900 16TH ST, Greeley, CO, 80631, with a listed phone of (970) 350-2454. NPI 1881672756 was issued on 01/02/2006.
Medicare Part D records for calendar year 2023 show 431 prescription claims written by this provider, covering 278 Medicare beneficiaries and totaling roughly $5K in drug spend, split 6% brand-name and 85% generic by claim count, with an opioid prescribing rate of 6.7%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.6/100 for the 2023 performance year (Quality 86.5), compared with the 83.5 average among clinicians with a measured score.
Family Medicine Physician is a high-volume specialty nationwide, with 147,760 enrolled providers across 56 states and an average of 3,418 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
Provider Details
| NPI | 1881672756 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 01/02/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.5814
Final Score
Measured-score avg: 83.5
86.5348
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Brent Grauerholz, 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.
Poudre Valley Medical Group LLC
Loveland, CO
Salem Clinic PC
Salem, OR
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
Brent Grauerholz, MD - brand share 6.0%
Family Medicine Physician average
6% brand-name claims vs 85% generic, on 431 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.
431
Total Claims
$5K
Total Drug Cost
278
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 438
- Total Day Supply
- 3,610
- Brand vs Generic
- 6% brand / 85% generic
- Brand Drug Cost
- $961
- Generic Drug Cost
- $3K
- Opioid Claims
- 29 (6.7% rate)
- Antibiotic Claims
- 112
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 1.07
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 22, 65-74: 142, 75-84: 97, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Brent Grauerholz, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisone
Prednisone
71 claims
- Amoxicillin
Amoxicillin
36 claims
- Methylprednisolone
Methylprednisolone
36 claims
- Dexamethasone
Dexamethasone
29 claims
- Paxlovid (Eua) 21
Paxlovid (Eua)
21 claims
- Cephalexin 18
Cephalexin
18 claims
- Hydrocodone-Acetam… 16
Hydrocodone-Acetaminophen
16 claims
- Lagevrio (Eua) 14
Lagevrio (Eua)
14 claims
| Drug | Claims |
|---|---|
| Prednisone | 71 |
| Amoxicillin | 36 |
| Methylprednisolone | 36 |
| Dexamethasone | 29 |
| Paxlovid (Eua) Nirmatrelvir/Ritonavir | 21 |
| Cephalexin | 18 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 16 |
| Lagevrio (Eua) Molnupiravir | 14 |
| Cyclobenzaprine Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Brent Grauerholz, MD fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Brent Grauerholz, MD's 431 claims are below the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Grauerholz.
Dr. Eric Abbott
D.O.
Colorado Springs, CO
Dr. John Abbott
D.O.
Lamar, CO
Dr. Rasha Abdelsalam
MD
Denver, CO
Dr. Baiju Abdulla
M.B.B.S.
Colorado Springs, CO
Dr. Nathalie Abisror
MD
Castle Pines, CO
Compare Family Medicine Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Colorado medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Brent Grauerholz, MD's specialty? ▼
Brent Grauerholz, MD specializes in Family Medicine Physician and practices in Greeley, Colorado. Credentials: MD.
How much does Brent Grauerholz, MD prescribe under Medicare Part D? ▼
In 2023, Brent Grauerholz, MD wrote 431 Medicare Part D claims totaling $5K in drug costs for 278 beneficiaries.
What is Brent Grauerholz, MD's Medicare quality score? ▼
Brent Grauerholz, MD has a CMS MIPS Final Score of 97.6/100 (Quality: 86.5). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Brent Grauerholz, MD located? ▼
Brent Grauerholz, MD is located at 1900 16TH ST, Greeley, CO, 80631. Phone: (970) 350-2454.
What is Brent Grauerholz, MD's NPI number? ▼
Brent Grauerholz, MD's National Provider Identifier (NPI) is 1881672756, issued on 01/02/2006.
Does Brent Grauerholz, MD prescribe more brand-name or generic drugs? ▼
Brent Grauerholz, MD's prescribing is 6% brand-name and 85% generic drugs by claim count, with $961 in brand drug costs.
Does Brent Grauerholz, MD prescribe opioids? ▼
Yes, Brent Grauerholz, MD had 29 opioid claims in 2023 with an opioid prescribing rate of 6.7%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Brent Grauerholz, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Brent Grauerholz, MD's most frequently prescribed drugs include Prednisone, Amoxicillin, Methylprednisolone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brent Grauerholz, MD accept Medicare? ▼
Brent Grauerholz, MD appears in CMS Medicare data with 431 Part D claims and 278 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brent Grauerholz, MD's credentials? ▼
Brent Grauerholz, MD's NPI is 1881672756 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 (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
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 May 2026.