NPI registry status
Active
2026 NPPES data Pain Medicine Physician NPI 1679527543 PA-C
Verify on CMS → Robert Keen, PA-C
Pain Medicine Physician in Winston Salem, North Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 951 in Pain 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 · 548 beneficiaries · Pain Medicine Physician avg: 2K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$232.76
12 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
Robert Keen, PA-C filed 5,355 Medicare Part D claims in 2023 as a Pain Medicine Physician in Winston Salem, North Carolina, prescribing 87% generic.
- 5K
- Part D claims, 2023
- 87%
- generic prescribing
- $232.76
- 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.
Robert Keen, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
5,355 Top 6% higher than 94% 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)
Robert Keen, PA-C 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 Robert Keen, PA-C?
Quality data not reportedPrimary specialty
Pain Medicine Physician
Medicare Part D claims
5,355 158% vs specialty avg
Specialty distribution in North Carolina
How Pain Medicine Physician compares to other specialties among North Carolina 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 Pain 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).
Robert Keen, PA-C appears in the CMS NPPES registry as a Pain Medicine Physician provider holding PA-C credentials at 145 KIMEL PARK DR, Winston Salem, NC, 27103, with a listed phone of (336) 765-6181. NPI 1679527543 was issued on 05/22/2006.
Medicare Part D records for calendar year 2023 show 5,355 prescription claims written by this provider, covering 548 Medicare beneficiaries and totaling roughly $633K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 69.1%.
Pain Medicine Physician is a narrow specialty nationwide, with 951 enrolled providers across 49 states and an average of 2,078 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 | 1679527543 |
|---|---|
| Specialty | Pain Medicine Physician |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 05/22/2006 |
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 Robert Keen, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$233
Largest payer
Collegium Pharmaceutical, 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
Robert Keen, PA-C - brand share 13.0%
Pain Medicine Physician average
13% brand-name claims vs 87% generic, on 5,355 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.
5,355
Total Claims
$633K
Total Drug Cost
548
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,763
- Total Day Supply
- 166,015
- Brand vs Generic
- 13% brand / 87% generic
- Brand Drug Cost
- $437K
- Generic Drug Cost
- $196K
- Opioid Claims
- 3,700 (69.1% rate)
Patient Demographics
- Average Patient Age
- 66.3 years
- Avg HCC Risk Score
- 1.66
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 206, 65-74: 238, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Robert Keen, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
1,168 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
473 claims
- Morphine Sulfate Er 464
Morphine Sulfate Er
464 claims
- Oxycodone-Acetamin… 378
Oxycodone-Acetaminophen
378 claims
- Gabapentin 331
Gabapentin
331 claims
- Xtampza Er 220
Xtampza Er
220 claims
- Methadone Hcl 218
Methadone Hcl
218 claims
- Tizanidine Hcl 218
Tizanidine Hcl
218 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 1,168 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 473 |
| Morphine Sulfate Er Morphine Sulfate | 464 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 378 |
| Gabapentin | 331 |
| Xtampza Er Oxycodone Myristate | 220 |
| Methadone Hcl | 218 |
| Tizanidine Hcl | 218 |
| Cyclobenzaprine Hcl | 200 |
| Morphine Sulfate | 181 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pain Medicine Physician Overview
How Robert Keen, PA-C fits within the Pain Medicine Physician landscape nationally.
951
Pain Medicine Physician Providers in US
49
States with Pain Medicine Physician
2,078
Avg Claims per Provider
Robert Keen, PA-C's 5,355 claims are above the specialty average of 2,078.
Nearby Pain Medicine Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Keen.
Dr. Robert Agnello
D.O.
Buies Creek, NC
Dr. Moogali Arvind
M.D.
High Point, NC
Dr. Courtney Auman
MD
Jacksonville, NC
Dr. Darren Bates
PA-C
Greensboro, NC
Dr. Susan Bertrand
MD
Cary, NC
Compare Pain 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 North Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pain 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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How to Find a Doctor
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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 North Carolina
Frequently Asked Questions
What is Robert Keen, PA-C's specialty? ▼
Robert Keen, PA-C specializes in Pain Medicine Physician and practices in Winston Salem, North Carolina. Credentials: PA-C.
How much does Robert Keen, PA-C prescribe under Medicare Part D? ▼
In 2023, Robert Keen, PA-C wrote 5,355 Medicare Part D claims totaling $633K in drug costs for 548 beneficiaries.
Where is Robert Keen, PA-C located? ▼
Robert Keen, PA-C is located at 145 KIMEL PARK DR, Winston Salem, NC, 27103. Phone: (336) 765-6181.
What is Robert Keen, PA-C's NPI number? ▼
Robert Keen, PA-C's National Provider Identifier (NPI) is 1679527543, issued on 05/22/2006.
Does Robert Keen, PA-C prescribe more brand-name or generic drugs? ▼
Robert Keen, PA-C's prescribing is 13% brand-name and 87% generic drugs by claim count, with $437K in brand drug costs.
Does Robert Keen, PA-C prescribe opioids? ▼
Yes, Robert Keen, PA-C had 3,700 opioid claims in 2023 with an opioid prescribing rate of 69.1%.
How many Pain Medicine Physician providers are there in the US? ▼
There are 951 Pain Medicine Physician providers across 49 states in the US. The average Pain Medicine Physician provider writes 2,078 Medicare Part D claims per year.
What drugs does Robert Keen, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Robert Keen, PA-C's most frequently prescribed drugs include Oxycodone Hcl, Hydrocodone-Acetaminophen, Morphine Sulfate Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Keen, PA-C accept Medicare? ▼
Robert Keen, PA-C appears in CMS Medicare data with 5,355 Part D claims and 548 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Keen, PA-C's credentials? ▼
Robert Keen, PA-C's NPI is 1679527543 with credentials PA-C. 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.