NPI registry status
Active
2026 NPPES data Urology Physician NPI 1497921175 MD
Verify on CMS → Charles Scales, MD
Urology Physician in Durham, 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 13,350 in Urology 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
107
Medicare Part D claims · 43 beneficiaries · Urology Physician avg: 1K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Charles Scales, MD filed 107 Medicare Part D claims in 2023 as a Urology Physician in Durham, North Carolina, prescribing 85% generic.
- 107
- 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.
Charles Scales, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
107 35th percentile higher than 35% 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 certification likely (heuristic, not verified)
Charles Scales, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Charles Scales, MD?
Quality data not reportedPrimary specialty
Urology Physician
Medicare Part D claims
107 92% vs specialty avg
Specialty distribution in North Carolina
How Urology 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 Urology 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).
Charles Scales, MD appears in the CMS NPPES registry as a Urology Physician provider holding MD credentials at 40 MEDICINE CIR, Durham, NC, 27710, with a listed phone of (919) 684-1999. NPI 1497921175 was issued on 05/02/2008.
Medicare Part D records for calendar year 2023 show 107 prescription claims written by this provider, covering 43 Medicare beneficiaries and totaling roughly $17K in drug spend, split 15% brand-name and 85% generic by claim count.
Urology Physician is a mid-sized specialty nationwide, with 13,350 enrolled providers across 54 states and an average of 1,280 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 | 1497921175 |
|---|---|
| Specialty | Urology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/02/2008 |
Hospital and facility affiliations
Facilities where Charles Scales, 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.
Duke Health Integrated Practice Inc
Durham, NC
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
Charles Scales, MD - brand share 15.0%
Urology Physician average
15% brand-name claims vs 85% generic, on 107 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.
107
Total Claims
$17K
Total Drug Cost
43
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 259
- Total Day Supply
- 7,457
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $14K
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 1.39
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Charles Scales, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Finasteride
Finasteride
35 claims
- Tamsulosin Hcl
Tamsulosin Hcl
24 claims
- Myrbetriq
Myrbetriq
15 claims
| Drug | Claims |
|---|---|
| Finasteride | 35 |
| Tamsulosin Hcl | 24 |
| Myrbetriq Mirabegron | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Urology Physician Overview
How Charles Scales, MD fits within the Urology Physician landscape nationally.
13,350
Urology Physician Providers in US
54
States with Urology Physician
1,280
Avg Claims per Provider
Charles Scales, MD's 107 claims are below the specialty average of 1,280.
Nearby Urology Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Scales.
Dr. Victor Abraham
MD
Wilmington, NC
Dr. Yousef Abu-Salha
MD
Cary, NC
Dr. Donald Allen
PA
Charlotte, NC
Dr. Joseph Allen
M.D.
Clayton, NC
Dr. Joselito Almario
MD
Ahoskie, NC
Compare Urology 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 Urology 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
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Explore North Carolina
Frequently Asked Questions
What is Charles Scales, MD's specialty? ▼
Charles Scales, MD specializes in Urology Physician and practices in Durham, North Carolina. Credentials: MD.
How much does Charles Scales, MD prescribe under Medicare Part D? ▼
In 2023, Charles Scales, MD wrote 107 Medicare Part D claims totaling $17K in drug costs for 43 beneficiaries.
Where is Charles Scales, MD located? ▼
Charles Scales, MD is located at 40 MEDICINE CIR, Durham, NC, 27710. Phone: (919) 684-1999.
What is Charles Scales, MD's NPI number? ▼
Charles Scales, MD's National Provider Identifier (NPI) is 1497921175, issued on 05/02/2008.
Does Charles Scales, MD prescribe more brand-name or generic drugs? ▼
Charles Scales, MD's prescribing is 15% brand-name and 85% generic drugs by claim count, with $14K in brand drug costs.
How many Urology Physician providers are there in the US? ▼
There are 13,350 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,280 Medicare Part D claims per year.
What drugs does Charles Scales, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Charles Scales, MD's most frequently prescribed drugs include Finasteride, Tamsulosin Hcl, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Charles Scales, MD accept Medicare? ▼
Charles Scales, MD appears in CMS Medicare data with 107 Part D claims and 43 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles Scales, MD's credentials? ▼
Charles Scales, MD's NPI is 1497921175 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.