NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1982668794 MD
Verify on CMS → Darwin Olson, MD
Family Medicine Physician in Tulsa, Oklahoma.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,640 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
13K
Medicare Part D claims · 921 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
83%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$86.66
5 payments · CMS Open Payments (Sunshine Act)
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
Darwin Olson, MD filed 13,239 Medicare Part D claims in 2023 as a Family Medicine Physician in Tulsa, Oklahoma, prescribing 83% generic.
- 13K
- Part D claims, 2023
- 83%
- generic prescribing
- $86.66
- industry payments (Sunshine Act)
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.
Darwin Olson, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
13,239 Top 2% higher than 98% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Darwin Olson, MD 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 Darwin Olson, MD?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
13,239 287% vs specialty avg
Specialty distribution in Oklahoma
How Family Medicine Physician compares to other specialties among Oklahoma 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).
Darwin Olson, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 7912 E 31ST CT, Tulsa, OK, 74145, with a listed phone of (918) 743-8200. NPI 1982668794 was issued on 04/17/2006.
Medicare Part D records for calendar year 2023 show 13,239 prescription claims written by this provider, covering 921 Medicare beneficiaries and totaling roughly $1.5 million in drug spend, split 16% brand-name and 83% generic by claim count, with an opioid prescribing rate of 2.5%.
Family Medicine Physician is a high-volume specialty nationwide, with 147,640 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 | 1982668794 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/17/2006 |
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 Darwin Olson, MD. Source: openpaymentsdata.cms.gov.
Total received
$87
Largest payer
Novo Nordisk 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 · Typical
Darwin Olson, MD - brand share 16.0%
Family Medicine Physician average
16% brand-name claims vs 83% generic, on 13,239 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.
13,239
Total Claims
$1.5M
Total Drug Cost
921
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 29,155
- Total Day Supply
- 835,004
- Brand vs Generic
- 16% brand / 83% generic
- Brand Drug Cost
- $1.2M
- Generic Drug Cost
- $268K
- Opioid Claims
- 329 (2.5% rate)
- Antibiotic Claims
- 455
Patient Demographics
- Average Patient Age
- 74.2 years
- Avg HCC Risk Score
- 1.23
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 66, 65-74: 431, 75-84: 317, 85+: 107
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Darwin Olson, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Rosuvastatin Calcium
Rosuvastatin Calcium
598 claims
- Levothyroxine Sodium
Levothyroxine Sodium
573 claims
- Lisinopril
Lisinopril
535 claims
- Metoprolol Succinate
Metoprolol Succinate
410 claims
- Atorvastatin Calcium
Atorvastatin Calcium
396 claims
- Amlodipine Besylate
Amlodipine Besylate
358 claims
- Metformin Hcl
Metformin Hcl
351 claims
- Tramadol Hcl
Tramadol Hcl
304 claims
| Drug | Claims |
|---|---|
| Rosuvastatin Calcium | 598 |
| Levothyroxine Sodium | 573 |
| Lisinopril | 535 |
| Metoprolol Succinate | 410 |
| Atorvastatin Calcium | 396 |
| Amlodipine Besylate | 358 |
| Metformin Hcl | 351 |
| Tramadol Hcl | 304 |
| Trazodone Hcl | 292 |
| Pantoprazole Sodium | 280 |
* 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 Darwin Olson, MD fits within the Family Medicine Physician landscape nationally.
147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Darwin Olson, MD's 13,239 claims are above the specialty average of 3,418.
Nearby Family Medicine Physician Providers in Oklahoma
Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as Olson.
Dr. Michael Aaron
M.D.
Weatherford, OK
Dr. Nicole Abel
DO
Tulsa, OK
Dr. Robert Abell
MD
Oklahoma City, OK
Dr. Bob Abernathy
DO
Cordell, OK
Dr. Rochelle Ablah
MD
Oklahoma City, OK
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 Oklahoma 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Oklahoma
Frequently Asked Questions
What is Darwin Olson, MD's specialty? ▼
Darwin Olson, MD specializes in Family Medicine Physician and practices in Tulsa, Oklahoma. Credentials: MD.
How much does Darwin Olson, MD prescribe under Medicare Part D? ▼
In 2023, Darwin Olson, MD wrote 13,239 Medicare Part D claims totaling $1.5M in drug costs for 921 beneficiaries.
Where is Darwin Olson, MD located? ▼
Darwin Olson, MD is located at 7912 E 31ST CT, Tulsa, OK, 74145. Phone: (918) 743-8200.
What is Darwin Olson, MD's NPI number? ▼
Darwin Olson, MD's National Provider Identifier (NPI) is 1982668794, issued on 04/17/2006.
Does Darwin Olson, MD prescribe more brand-name or generic drugs? ▼
Darwin Olson, MD's prescribing is 16% brand-name and 83% generic drugs by claim count, with $1.2M in brand drug costs.
Does Darwin Olson, MD prescribe opioids? ▼
Yes, Darwin Olson, MD had 329 opioid claims in 2023 with an opioid prescribing rate of 2.5%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,640 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 Darwin Olson, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Darwin Olson, MD's most frequently prescribed drugs include Rosuvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Darwin Olson, MD accept Medicare? ▼
Darwin Olson, MD appears in CMS Medicare data with 13,239 Part D claims and 921 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Darwin Olson, MD's credentials? ▼
Darwin Olson, MD's NPI is 1982668794 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.
- 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.