NPI registry status
Active
2026 NPPES data Surgery Physician NPI 1518538917 MD
Verify on CMS → Hunter Chalfant, MD
Surgery Physician in Hinton, 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 36,199 in Surgery 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
116
Medicare Part D claims · 55 beneficiaries · Surgery Physician avg: 169
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$347.88
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
Hunter Chalfant, MD filed 116 Medicare Part D claims in 2023 as a Surgery Physician in Hinton, Oklahoma, prescribing 90% generic.
- 116
- Part D claims, 2023
- 90%
- generic prescribing
- $347.88
- 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.
Hunter Chalfant, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
116 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
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Board-eligible specialty (heuristic, not verified)
Hunter Chalfant, 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 Hunter Chalfant, MD?
Quality data not reportedPrimary specialty
Surgery Physician
Medicare Part D claims
116 31% vs specialty avg
Specialty distribution in Oklahoma
How Surgery 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 Surgery 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).
Hunter Chalfant, MD appears in the CMS NPPES registry as a Surgery Physician provider holding MD credentials at 1324 S BROADWAY AVE, Hinton, OK, 73047, with a listed phone of (405) 545-0905. NPI 1518538917 was issued on 07/07/2021.
Medicare Part D records for calendar year 2023 show 116 prescription claims written by this provider, covering 55 Medicare beneficiaries and totaling roughly $7K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 33.6%.
Surgery Physician is a mid-sized specialty nationwide, with 36,199 enrolled providers across 56 states and an average of 169 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 | 1518538917 |
|---|---|
| Specialty | Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/07/2021 |
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 Hunter Chalfant, MD. Source: openpaymentsdata.cms.gov.
Total received
$348
Largest payer
Silk Road Medical, 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
Hunter Chalfant, MD - brand share 10.0%
Surgery Physician average
10% brand-name claims vs 90% generic, on 116 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.
116
Total Claims
$7K
Total Drug Cost
55
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 159
- Total Day Supply
- 2,957
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $1K
- Opioid Claims
- 39 (33.6% rate)
Patient Demographics
- Average Patient Age
- 62.4 years
- Avg HCC Risk Score
- 2.46
- Gender Split
- 65% female / 35% male
- Age Distribution
- <65: 23, 65-74: 19, 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 Hunter Chalfant, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
31 claims
- Pantoprazole Sodium
Pantoprazole Sodium
16 claims
- Ondansetron Hcl 12
Ondansetron Hcl
12 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 31 |
| Pantoprazole Sodium | 16 |
| Ondansetron Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgery Physician Overview
How Hunter Chalfant, MD fits within the Surgery Physician landscape nationally.
36,199
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider
Hunter Chalfant, MD's 116 claims are below the specialty average of 169.
Nearby Surgery Physician Providers in Oklahoma
Other clinicians with the same primary specialty enrolled in Oklahoma, drawn from the same CMS NPPES roster as Chalfant.
Nitin Abrol
Oklahoma City, OK
Dr. Haley Adams
DO
Grove, OK
Dr. Larry Adams
MD
Edmond, OK
Dr. Celeste Adrian
M.D.
Ada, OK
Dr. Carson Agee
M.D.
Oklahoma City, OK
Compare Surgery 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 Surgery 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
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Explore Oklahoma
Frequently Asked Questions
What is Hunter Chalfant, MD's specialty? ▼
Hunter Chalfant, MD specializes in Surgery Physician and practices in Hinton, Oklahoma. Credentials: MD.
How much does Hunter Chalfant, MD prescribe under Medicare Part D? ▼
In 2023, Hunter Chalfant, MD wrote 116 Medicare Part D claims totaling $7K in drug costs for 55 beneficiaries.
Where is Hunter Chalfant, MD located? ▼
Hunter Chalfant, MD is located at 1324 S BROADWAY AVE, Hinton, OK, 73047. Phone: (405) 545-0905.
What is Hunter Chalfant, MD's NPI number? ▼
Hunter Chalfant, MD's National Provider Identifier (NPI) is 1518538917, issued on 07/07/2021.
Does Hunter Chalfant, MD prescribe more brand-name or generic drugs? ▼
Hunter Chalfant, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $6K in brand drug costs.
Does Hunter Chalfant, MD prescribe opioids? ▼
Yes, Hunter Chalfant, MD had 39 opioid claims in 2023 with an opioid prescribing rate of 33.6%.
How many Surgery Physician providers are there in the US? ▼
There are 36,199 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does Hunter Chalfant, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Hunter Chalfant, MD's most frequently prescribed drugs include Oxycodone Hcl, Pantoprazole Sodium, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hunter Chalfant, MD accept Medicare? ▼
Hunter Chalfant, MD appears in CMS Medicare data with 116 Part D claims and 55 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hunter Chalfant, MD's credentials? ▼
Hunter Chalfant, MD's NPI is 1518538917 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.
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.