NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1033203591 MD
Verify on CMS → Robert Sachs, MD
Internal Medicine Physician in Cheyenne, Wyoming.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 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
5K
Medicare Part D claims · 588 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.6/100
▲ 14 pts above national avg 83.1 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Robert Sachs, MD reported a CMS MIPS final score of 97.6/100 - above the 83.1 national average - and filed 5,108 Medicare Part D claims in 2023.
- 97.6/100
- MIPS score · +14 vs avg
- 5K
- Part D claims, 2023
- 88%
- 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.
Robert Sachs, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 15% higher than 85% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Robert Sachs, MD sits
This provider among internal medicine physician peers
Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Robert Sachs, MD writes more Part D claims than 81% of them and scores higher on MIPS quality than 86% - placing this provider in the high-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 internal medicine physician peer from a representative sample of 60; the gold marker is Robert Sachs, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Robert Sachs, MD 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).
What does the federal data show about Robert Sachs, MD?
High performer (top quartile)Primary specialty
Internal Medicine Physician
Medicare Part D claims
5,108 88% vs specialty avg
MIPS final score
97.6/100 14.5 pts vs avg
Specialty distribution in Wyoming
How Internal Medicine Physician compares to other specialties among Wyoming providers
Medicare quality performance, MIPS
Robert Sachs, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 97.6/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) - 97.6/100 vs national avg 83.1
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).
Robert Sachs, MD appears in the CMS NPPES registry as an Internal Medicine Physician provider holding MD credentials at 5050 POWDERHOUSE RD, Cheyenne, WY, 82009, with a listed phone of (307) 634-1311. NPI 1033203591 was issued on 10/02/2006.
Medicare Part D records for calendar year 2023 show 5,108 prescription claims written by this provider, covering 588 Medicare beneficiaries and totaling roughly $438K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 0.2%. 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 national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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 | 1033203591 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 10/02/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.5814
Final Score
Avg: 83.1
86.5348
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Robert Sachs, 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
Cheyenne, WY
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 · Typical
Robert Sachs, MD - brand share 12.0%
Internal Medicine Physician average
12% brand-name claims vs 88% generic, on 5,108 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.
5,108
Total Claims
$438K
Total Drug Cost
588
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 12,453
- Total Day Supply
- 366,413
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $349K
- Generic Drug Cost
- $87K
- Opioid Claims
- 11 (0.2% rate)
- Antibiotic Claims
- 112
Patient Demographics
- Average Patient Age
- 74.3 years
- Avg HCC Risk Score
- 1.12
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 38, 65-74: 264, 75-84: 206, 85+: 80
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Robert Sachs, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
385 claims
- Atorvastatin Calcium
Atorvastatin Calcium
363 claims
- Lisinopril
Lisinopril
233 claims
- Losartan Potassium
Losartan Potassium
226 claims
- Amlodipine Besylate
Amlodipine Besylate
224 claims
- Metoprolol Succinate
Metoprolol Succinate
192 claims
- Omeprazole
Omeprazole
180 claims
- Metformin Hcl
Metformin Hcl
178 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 385 |
| Atorvastatin Calcium | 363 |
| Lisinopril | 233 |
| Losartan Potassium | 226 |
| Amlodipine Besylate | 224 |
| Metoprolol Succinate | 192 |
| Omeprazole | 180 |
| Metformin Hcl | 178 |
| Hydrochlorothiazide | 135 |
| Simvastatin | 129 |
* 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 Robert Sachs, MD fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Robert Sachs, MD's 5,108 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Wyoming
Other clinicians with the same primary specialty enrolled in Wyoming, drawn from the same CMS NPPES roster as Sachs.
Dr. Juli Ackerman
MD
Sheridan, WY
Dr. Molly Adami
DNP, FNP-C
Laramie, WY
Dr. Jean Allais
MD
Laramie, WY
Dr. Richard Anderson
M.D.
Cody, WY
Dr. Cynthia Archer
MD
Jackson, WY
Compare Internal 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 Wyoming medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Internal 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 Robert Sachs, MD's specialty? ▼
Robert Sachs, MD specializes in Internal Medicine Physician and practices in Cheyenne, Wyoming. Credentials: MD.
How much does Robert Sachs, MD prescribe under Medicare Part D? ▼
In 2023, Robert Sachs, MD wrote 5,108 Medicare Part D claims totaling $438K in drug costs for 588 beneficiaries.
What is Robert Sachs, MD's Medicare quality score? ▼
Robert Sachs, MD has a CMS MIPS Final Score of 97.6/100 (Quality: 86.5). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Robert Sachs, MD located? ▼
Robert Sachs, MD is located at 5050 POWDERHOUSE RD, Cheyenne, WY, 82009. Phone: (307) 634-1311.
What is Robert Sachs, MD's NPI number? ▼
Robert Sachs, MD's National Provider Identifier (NPI) is 1033203591, issued on 10/02/2006.
Does Robert Sachs, MD prescribe more brand-name or generic drugs? ▼
Robert Sachs, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $349K in brand drug costs.
Does Robert Sachs, MD prescribe opioids? ▼
Yes, Robert Sachs, MD had 11 opioid claims in 2023 with an opioid prescribing rate of 0.2%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Robert Sachs, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Robert Sachs, MD's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Sachs, MD accept Medicare? ▼
Robert Sachs, MD appears in CMS Medicare data with 5,108 Part D claims and 588 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Sachs, MD's credentials? ▼
Robert Sachs, MD's NPI is 1033203591 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
Compiled from official public sources by the PlainDoctor editorial team.
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.