NPI registry status
Active
2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1144227067 DO
Verify on CMS → James Nunley, DO
Pain Medicine (Anesthesiology) Physician in Manchester, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,032 in Pain Medicine (Anesthesiology) 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
1K
Medicare Part D claims · 154 beneficiaries · Pain Medicine (Anesthesiology) Physician avg: 2K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$342.11
18 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
James Nunley, DO filed 1,027 Medicare Part D claims in 2023 as a Pain Medicine (Anesthesiology) Physician in Manchester, Tennessee, prescribing 95% generic.
- 1K
- Part D claims, 2023
- 95%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥76th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about James Nunley, DO
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1144227067), first enumerated 07/07/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,027 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$342.11 in reported industry payments (18 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1144227067 · Pain Medicine (Anesthesiology) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1144227067
- ENUM-LEGACY 2005
- TAX-NARROW 4,032
- RX-MID 1,027
- BOOK-THIN 64 in Tennessee
- PHOTO-ENUM Tamim Khaliqi · 2005
James Nunley, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,027 ≥ 76th percentile 76% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
James Nunley, DO 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 James Nunley, DO?
Quality data not reportedPrimary specialty
Pain Medicine (Anesthesiology) Physician
Medicare Part D claims
1,027 38% vs specialty avg
Specialty distribution in Tennessee
How Pain Medicine (Anesthesiology) Physician compares to other specialties among Tennessee 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 (Anesthesiology) 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).
Practice Address
Provider Details
| NPI | 1144227067 |
|---|---|
| Specialty | Pain Medicine (Anesthesiology) Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 07/07/2005 |
Hospital and facility affiliations
Facilities where James Nunley, DO 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.
James R. Nunley D.o.,p.c.
Manchester, TN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 James Nunley, DO. Source: openpaymentsdata.cms.gov.
Total received
$342
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 · Generic-heavy
James Nunley, DO - brand share 5.0%
Pain Medicine (Anesthesiology) Physician average
5% brand-name claims vs 95% generic, on 1,027 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.
1,027
Total Claims
$69K
Total Drug Cost
154
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,210
- Total Day Supply
- 34,179
- Brand vs Generic
- 5% brand / 95% generic
- Brand Drug Cost
- $33K
- Generic Drug Cost
- $36K
- Opioid Claims
- 481 (46.8% rate)
- Antibiotic Claims
- 29
Patient Demographics
- Average Patient Age
- 71.9 years
- Avg HCC Risk Score
- 1.47
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 34, 65-74: 58, 75-84: 50, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What James Nunley, DO prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
150 claims
- Gabapentin
Gabapentin
124 claims
- Oxycodone Hcl
Oxycodone Hcl
105 claims
- Tizanidine Hcl 54
Tizanidine Hcl
54 claims
- Oxycodone-Acetamin… 52
Oxycodone-Acetaminophen
52 claims
- Tramadol Hcl 39
Tramadol Hcl
39 claims
- Cyclobenzaprine Hcl 38
Cyclobenzaprine Hcl
38 claims
- Baclofen 31
Baclofen
31 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 150 |
| Gabapentin | 124 |
| Oxycodone Hcl | 105 |
| Tizanidine Hcl | 54 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 52 |
| Tramadol Hcl | 39 |
| Cyclobenzaprine Hcl | 38 |
| Baclofen | 31 |
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 28 |
| Fentanyl | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Pain Medicine (Anesthesiology) Physician in TN →
All providers in Tennessee →
Compare specialties →
Pain Medicine (Anesthesiology) Physician Overview
How James Nunley, DO fits within the Pain Medicine (Anesthesiology) Physician landscape nationally.
4,032
Pain Medicine (Anesthesiology) Physician Providers in US
53
States with Pain Medicine (Anesthesiology) Physician
1,657
Avg Claims per Provider
James Nunley, DO's 1,027 claims are below the specialty average of 1,657.
Nationwide Pain Medicine (Anesthesiology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Nunley, both outside Tennessee so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pain Medicine (Anesthesiology) Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Nunley.
One of 64 Pain Medicine (Anesthesiology) Physician providers enrolled in Tennessee, 5 are shown here.
Dr. Michael Allison
D.O.
Crossville, TN
Dr. David Annand
M.D.
Knoxville, TN
Dr. Kenneth Bartholomew
MD
Nashville, TN
Dr. Michael Bearb
M.D.
Jackson, TN
Dr. Vidya Bethi
MD
Clarksville, TN
Compare Pain Medicine (Anesthesiology) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is James Nunley, DO's specialty? ▼
James Nunley, DO specializes in Pain Medicine (Anesthesiology) Physician and practices in Manchester, Tennessee. Credentials: DO.
How much does James Nunley, DO prescribe under Medicare Part D? ▼
In 2023, James Nunley, DO wrote 1,027 Medicare Part D claims totaling $69K in drug costs for 154 beneficiaries.
Where is James Nunley, DO located? ▼
James Nunley, DO is located at 2345 MURFREESBORO HWY, Manchester, TN, 37355. Phone: (931) 728-5607.
What is James Nunley, DO's NPI number? ▼
James Nunley, DO's National Provider Identifier (NPI) is 1144227067, issued on 07/07/2005.
Does James Nunley, DO prescribe more brand-name or generic drugs? ▼
James Nunley, DO's prescribing is 5% brand-name and 95% generic drugs by claim count, with $33K in brand drug costs.
Does James Nunley, DO prescribe opioids? ▼
Yes, James Nunley, DO had 481 opioid claims in 2023 with an opioid prescribing rate of 46.8%.
How many Pain Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 4,032 Pain Medicine (Anesthesiology) Physician providers across 53 states in the US. The average Pain Medicine (Anesthesiology) Physician provider writes 1,657 Medicare Part D claims per year.
What drugs does James Nunley, DO prescribe most often? ▼
Based on 2023 Medicare Part D data, James Nunley, DO's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Gabapentin, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does James Nunley, DO accept Medicare? ▼
James Nunley, DO appears in CMS Medicare data with 1,027 Part D claims and 154 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify James Nunley, DO's credentials? ▼
James Nunley, DO's NPI is 1144227067 with credentials DO. 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
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.