NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1376744433 M.D.
Verify on CMS → Darlene Petersen, M.D.
Family Medicine Physician in Roy, Utah.
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
3K
Medicare Part D claims · 219 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Darlene Petersen, M.D. filed 3,117 Medicare Part D claims in 2023 as a Family Medicine Physician in Roy, Utah, prescribing 88% generic.
- 3K
- Part D claims, 2023
- 88%
- generic prescribing
- ≥89th
- 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.
CMS NPPES provider registry desk
NPI 1376744433 · Family Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1376744433
- ENUM-MID 2007
- TAX-MEGA 148K Family Medicine
- RX-MID 3,117
- BOOK-LIGHT 1,369 in Utah
- PHOTO-ENUM Wendis Santana · 2007
Darlene Petersen, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,117 ≥ 89th percentile 89% of 1,370,886 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 · 2023
◑
Board-eligible specialty (heuristic, not verified)
Darlene Petersen, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Darlene Petersen, M.D.?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
3,117 9% vs specialty avg
Specialty distribution in Utah
How Family Medicine Physician compares to other specialties among Utah 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 Family 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 | 1376744433 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 05/29/2007 |
Brand vs generic prescribing mix · Typical
Darlene Petersen, M.D. - brand share 12.0%
Family Medicine Physician average
12% brand-name claims vs 88% generic, on 3,117 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.
3,117
Total Claims
$368K
Total Drug Cost
219
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,422
- Total Day Supply
- 216,923
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $266K
- Generic Drug Cost
- $101K
- Opioid Claims
- 17 (0.5% rate)
- Antibiotic Claims
- 48
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 1.30
- Gender Split
- 74% female / 26% male
- Age Distribution
- <65: 27, 65-74: 114, 75-84: 59, 85+: 19
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Darlene Petersen, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
198 claims
- Buprenorphine-Nalo…
Buprenorphine-Naloxone
157 claims
- Levothyroxine Sodium
Levothyroxine Sodium
156 claims
- Losartan Potassium
Losartan Potassium
114 claims
- Lisinopril
Lisinopril
108 claims
- Metformin Hcl Er
Metformin Hcl Er
101 claims
- Gabapentin
Gabapentin
100 claims
- Ibandronate Sodium 76
Ibandronate Sodium
76 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 198 |
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 157 |
| Levothyroxine Sodium | 156 |
| Losartan Potassium | 114 |
| Lisinopril | 108 |
| Metformin Hcl Er Metformin Hcl | 101 |
| Gabapentin | 100 |
| Ibandronate Sodium | 76 |
| Omeprazole | 69 |
| Pantoprazole Sodium | 60 |
* 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 Darlene Petersen, M.D. 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
Darlene Petersen, M.D.'s 3,117 claims are below the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Petersen, both outside Utah so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Utah
Other clinicians with the same primary specialty enrolled in Utah, drawn from the same CMS NPPES roster as Petersen.
One of 1,369 Family Medicine Physician providers enrolled in Utah, 5 are shown here.
Dr. David Aamodt
MD
South Ogden, UT
Dr. Critt Aardema
MD
Roy, UT
Dr. Sergio Abarca
M.D.
Tooele, UT
Dr. Martin Abbinanti
M.D.
Sandy, UT
Dr. Justin Abbott
D.O.
Richfield, UT
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Darlene Petersen, M.D.'s specialty? ▼
Darlene Petersen, M.D. specializes in Family Medicine Physician and practices in Roy, Utah. Credentials: M.D..
How much does Darlene Petersen, M.D. prescribe under Medicare Part D? ▼
In 2023, Darlene Petersen, M.D. wrote 3,117 Medicare Part D claims totaling $368K in drug costs for 219 beneficiaries.
Where is Darlene Petersen, M.D. located? ▼
Darlene Petersen, M.D. is located at 5640 S 3500 W, Roy, UT, 84067. Phone: (801) 773-2838.
What is Darlene Petersen, M.D.'s NPI number? ▼
Darlene Petersen, M.D.'s National Provider Identifier (NPI) is 1376744433, issued on 05/29/2007.
Does Darlene Petersen, M.D. prescribe more brand-name or generic drugs? ▼
Darlene Petersen, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $266K in brand drug costs.
Does Darlene Petersen, M.D. prescribe opioids? ▼
Yes, Darlene Petersen, M.D. had 17 opioid claims in 2023 with an opioid prescribing rate of 0.5%.
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 Darlene Petersen, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Darlene Petersen, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Buprenorphine-Naloxone, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Darlene Petersen, M.D. accept Medicare? ▼
Darlene Petersen, M.D. appears in CMS Medicare data with 3,117 Part D claims and 219 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Darlene Petersen, M.D.'s credentials? ▼
Darlene Petersen, M.D.'s NPI is 1376744433 with credentials M.D.. 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.
- 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.