NPI registry status
Active
2026 NPPES data Sleep Medicine (Internal Medicine) Physician NPI 1093701658 M.D.
Verify on CMS → Robert Gordon, M.D.
Sleep Medicine (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 859 in Sleep Medicine (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
824
Medicare Part D claims · 97 beneficiaries · Sleep Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
74%
generic claims · 26% 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
Robert Gordon, M.D. filed 824 Medicare Part D claims in 2023 as a Sleep Medicine (Internal Medicine) Physician in Oklahoma City, Oklahoma, prescribing 74% generic.
- 824
- Part D claims, 2023
- 74%
- generic prescribing
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 Gordon, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
824 Top 27% higher than 73% 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 Gordon, 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 Robert Gordon, M.D.?
Quality data not reportedPrimary specialty
Sleep Medicine (Internal Medicine) Physician
Medicare Part D claims
824 37% vs specialty avg
Specialty distribution in Oklahoma
How Sleep Medicine (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 Sleep Medicine (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).
Robert Gordon, M.D. appears in the CMS NPPES registry as a Sleep Medicine (Internal Medicine) Physician provider holding M.D. credentials at 4200 W MEMORIAL RD, Oklahoma City, OK, 73120, with a listed phone of (405) 286-5946. NPI 1093701658 was issued on 09/20/2005.
Medicare Part D records for calendar year 2023 show 824 prescription claims written by this provider, covering 97 Medicare beneficiaries and totaling roughly $139K in drug spend, split 26% brand-name and 74% generic by claim count, with an opioid prescribing rate of 3.6%.
Sleep Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 859 enrolled providers across 52 states and an average of 1,310 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 | 1093701658 |
|---|---|
| Specialty | Sleep Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/20/2005 |
Brand vs generic prescribing mix · Above average
Robert Gordon, M.D. - brand share 26.0%
Sleep Medicine (Internal Medicine) Physician average
26% brand-name claims vs 74% generic, on 824 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.
824
Total Claims
$139K
Total Drug Cost
97
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,285
- Total Day Supply
- 37,684
- Brand vs Generic
- 26% brand / 74% generic
- Brand Drug Cost
- $117K
- Generic Drug Cost
- $22K
- Opioid Claims
- 30 (3.6% rate)
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 73.5 years
- Avg HCC Risk Score
- 1.41
- Gender Split
- 49% female / 51% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Robert Gordon, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Montelukast Sodium
Montelukast Sodium
125 claims
- Zolpidem Tartrate
Zolpidem Tartrate
69 claims
- Clonazepam
Clonazepam
51 claims
- Anoro Ellipta 38
Anoro Ellipta
38 claims
- Trelegy Ellipta 36
Trelegy Ellipta
36 claims
- Symbicort 28
Symbicort
28 claims
- Temazepam 27
Temazepam
27 claims
- Albuterol Sulfate … 23
Albuterol Sulfate Hfa
23 claims
| Drug | Claims |
|---|---|
| Montelukast Sodium | 125 |
| Zolpidem Tartrate | 69 |
| Clonazepam | 51 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 38 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 36 |
| Symbicort Budesonide/Formoterol Fumarate | 28 |
| Temazepam | 27 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 23 |
| Gabapentin | 23 |
| Armodafinil | 21 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sleep Medicine (Internal Medicine) Physician in OK →
All providers in Oklahoma →
Compare specialties →
Sleep Medicine (Internal Medicine) Physician Overview
How Robert Gordon, M.D. fits within the Sleep Medicine (Internal Medicine) Physician landscape nationally.
859
Sleep Medicine (Internal Medicine) Physician Providers in US
52
States with Sleep Medicine (Internal Medicine) Physician
1,310
Avg Claims per Provider
Robert Gordon, M.D.'s 824 claims are below the specialty average of 1,310.
Nearby Sleep Medicine (Internal Medicine) Physician Providers in Oklahoma
Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as Gordon.
Compare Sleep Medicine (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 Sleep Medicine (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
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
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 Robert Gordon, M.D.'s specialty? ▼
Robert Gordon, M.D. specializes in Sleep Medicine (Internal Medicine) Physician and practices in Oklahoma City, Oklahoma. Credentials: M.D..
How much does Robert Gordon, M.D. prescribe under Medicare Part D? ▼
In 2023, Robert Gordon, M.D. wrote 824 Medicare Part D claims totaling $139K in drug costs for 97 beneficiaries.
Where is Robert Gordon, M.D. located? ▼
Robert Gordon, M.D. is located at 4200 W MEMORIAL RD, Oklahoma City, OK, 73120. Phone: (405) 286-5946.
What is Robert Gordon, M.D.'s NPI number? ▼
Robert Gordon, M.D.'s National Provider Identifier (NPI) is 1093701658, issued on 09/20/2005.
Does Robert Gordon, M.D. prescribe more brand-name or generic drugs? ▼
Robert Gordon, M.D.'s prescribing is 26% brand-name and 74% generic drugs by claim count, with $117K in brand drug costs.
Does Robert Gordon, M.D. prescribe opioids? ▼
Yes, Robert Gordon, M.D. had 30 opioid claims in 2023 with an opioid prescribing rate of 3.6%.
How many Sleep Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 859 Sleep Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Sleep Medicine (Internal Medicine) Physician provider writes 1,310 Medicare Part D claims per year.
What drugs does Robert Gordon, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Robert Gordon, M.D.'s most frequently prescribed drugs include Montelukast Sodium, Zolpidem Tartrate, Clonazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Gordon, M.D. accept Medicare? ▼
Robert Gordon, M.D. appears in CMS Medicare data with 824 Part D claims and 97 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Gordon, M.D.'s credentials? ▼
Robert Gordon, M.D.'s NPI is 1093701658 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
Compiled from official public sources by the PlainDoctor editorial team.
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.