NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1255335287 MD
Verify on CMS → Mark Miles, MD
Internal Medicine Physician in Oklahoma City, 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 172,858 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
626
Medicare Part D claims · 138 beneficiaries · Internal Medicine Physician avg: 3K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mark Miles, MD filed 626 Medicare Part D claims in 2023 as a Internal Medicine Physician in Oklahoma City, Oklahoma.
- 626
- Part D claims, 2023
- 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.
Mark Miles, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
626 Top 31% higher than 69% 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)
Mark Miles, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Mark Miles, MD?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
626 77% vs specialty avg
Specialty distribution in Oklahoma
How Internal 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 Internal 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).
Mark Miles, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 3433 NW 56TH ST, Oklahoma City, OK, 73112, with a listed phone of (405) 917-3518. NPI 1255335287 was issued on 06/08/2005.
Medicare Part D records for calendar year 2023 show 626 prescription claims written by this provider, covering 138 Medicare beneficiaries and totaling roughly $77K in drug spend, with an opioid prescribing rate of 3.7%.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 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 | 1255335287 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/08/2005 |
Hospital and facility affiliations
Facilities where Mark Miles, 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.
Integris Ambulatory Care Corporation
Oklahoma City, OK
Metro Physicians LLC
Oklahoma City, OK
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
626
Total Claims
$77K
Total Drug Cost
138
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 994
- Total Day Supply
- 27,446
- Generic Drug Cost
- $9K
- Opioid Claims
- 23 (3.7% rate)
- Antibiotic Claims
- 30
Patient Demographics
- Average Patient Age
- 75.3 years
- Avg HCC Risk Score
- 2.49
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 24, 65-74: 38, 75-84: 43, 85+: 33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mark Miles, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
39 claims
- Tamsulosin Hcl
Tamsulosin Hcl
33 claims
- Levothyroxine Sodium
Levothyroxine Sodium
27 claims
- Eliquis
Eliquis
22 claims
- Amlodipine Besylate
Amlodipine Besylate
20 claims
- Gabapentin
Gabapentin
17 claims
- Losartan Potassium
Losartan Potassium
16 claims
- Omeprazole
Omeprazole
16 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 39 |
| Tamsulosin Hcl | 33 |
| Levothyroxine Sodium | 27 |
| Eliquis Apixaban | 22 |
| Amlodipine Besylate | 20 |
| Gabapentin | 17 |
| Losartan Potassium | 16 |
| Omeprazole | 16 |
| Baclofen | 15 |
| Lisinopril | 15 |
* 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 Mark Miles, MD fits within the Internal Medicine Physician landscape nationally.
172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Mark Miles, MD's 626 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Oklahoma
Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as Miles.
Abdelrahman Abdalla
Oklahoma City, OK
Dr. Al-Ola Abdallah
M.D
Tulsa, OK
Dr. Tony Abdo
M.D
Oklahoma City, OK
Dr. David Abernethy
M.D.
Oklahoma City, OK
Dr. Ahmed Abou Elmagd
MD
Fort Sill, OK
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 Oklahoma 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.
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 Mark Miles, MD's specialty? ▼
Mark Miles, MD specializes in Internal Medicine Physician and practices in Oklahoma City, Oklahoma. Credentials: MD.
How much does Mark Miles, MD prescribe under Medicare Part D? ▼
In 2023, Mark Miles, MD wrote 626 Medicare Part D claims totaling $77K in drug costs for 138 beneficiaries.
Where is Mark Miles, MD located? ▼
Mark Miles, MD is located at 3433 NW 56TH ST, Oklahoma City, OK, 73112. Phone: (405) 917-3518.
What is Mark Miles, MD's NPI number? ▼
Mark Miles, MD's National Provider Identifier (NPI) is 1255335287, issued on 06/08/2005.
Does Mark Miles, MD prescribe opioids? ▼
Yes, Mark Miles, MD had 23 opioid claims in 2023 with an opioid prescribing rate of 3.7%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,858 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 Mark Miles, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Mark Miles, MD's most frequently prescribed drugs include Atorvastatin Calcium, Tamsulosin Hcl, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Miles, MD accept Medicare? ▼
Mark Miles, MD appears in CMS Medicare data with 626 Part D claims and 138 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Miles, MD's credentials? ▼
Mark Miles, MD's NPI is 1255335287 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.