NPI registry status
Active
2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1437544053
Verify on CMS → Mikio Ranahan
Pain Medicine (Anesthesiology) Physician in Chapel Hill, 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 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
2K
Medicare Part D claims · 313 beneficiaries · Pain Medicine (Anesthesiology) Physician avg: 2K
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$797.22
34 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Mikio Ranahan filed 2,073 Medicare Part D claims in 2023 as a Pain Medicine (Anesthesiology) Physician in Chapel Hill, North Carolina, prescribing 98% generic.
- 2K
- Part D claims, 2023
- 98%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥84th
- 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.
CMS NPPES provider registry desk
NPI 1437544053 · Pain Medicine (Anesthesiology) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1437544053
- ENUM-MID 2015
- TAX-NARROW 4,032
- RX-MID 2,073
- BOOK-THIN 130 in North Carolina
- PHOTO-ENUM Lucas Davanzo · 2015
Mikio Ranahan's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,073 ≥ 84th percentile 84% 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)
Mikio Ranahan 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 Mikio Ranahan?
Quality data not reportedPrimary specialty
Pain Medicine (Anesthesiology) Physician
Medicare Part D claims
2,073 25% vs specialty avg
Specialty distribution in North Carolina
How Pain Medicine (Anesthesiology) 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 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 | 1437544053 |
|---|---|
| Specialty | Pain Medicine (Anesthesiology) Physician |
| Gender | Male |
| NPI Issued | 03/31/2015 |
Hospital and facility affiliations
Facilities where Mikio Ranahan 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.
Conway Regional Medical Center Inc
Conway, AR
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 Mikio Ranahan. Source: openpaymentsdata.cms.gov.
Total received
$797
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
Mikio Ranahan - brand share 2.0%
Pain Medicine (Anesthesiology) Physician average
2% brand-name claims vs 98% generic, on 2,073 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.
2,073
Total Claims
$74K
Total Drug Cost
313
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,176
- Total Day Supply
- 59,393
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $15K
- Generic Drug Cost
- $59K
- Opioid Claims
- 1,113 (53.7% rate)
Patient Demographics
- Average Patient Age
- 68.5 years
- Avg HCC Risk Score
- 1.40
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 94, 65-74: 136, 75-84: 59, 85+: 24
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mikio Ranahan prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
576 claims
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
277 claims
- Gabapentin 204
Gabapentin
204 claims
- Tramadol Hcl 148
Tramadol Hcl
148 claims
- Nortriptyline Hcl 135
Nortriptyline Hcl
135 claims
- Baclofen 113
Baclofen
113 claims
- Cyclobenzaprine Hcl 110
Cyclobenzaprine Hcl
110 claims
- Pregabalin 81
Pregabalin
81 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 576 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 277 |
| Gabapentin | 204 |
| Tramadol Hcl | 148 |
| Nortriptyline Hcl | 135 |
| Baclofen | 113 |
| Cyclobenzaprine Hcl | 110 |
| Pregabalin | 81 |
| Duloxetine Hcl | 69 |
| Naloxone Hcl | 57 |
* 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 NC →
All providers in North Carolina →
Compare specialties →
Pain Medicine (Anesthesiology) Physician Overview
How Mikio Ranahan 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
Mikio Ranahan's 2,073 claims are above the specialty average of 1,657.
Nationwide Pain Medicine (Anesthesiology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ranahan, both outside North Carolina so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pain Medicine (Anesthesiology) Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Ranahan.
One of 130 Pain Medicine (Anesthesiology) Physician providers enrolled in North Carolina, 5 are shown here.
Dr. Michael Abdou
M.D.
Lumberton, NC
Dr. Ammar Alamarie
M.D
Matthews, NC
Dr. Ashvin Amara
MD
Charlotte, NC
Dr. Javid Baksh
DO
Asheville, NC
Dr. Michael Bartoszek
M.D.
Fort Bragg, NC
Compare Pain Medicine (Anesthesiology) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mikio Ranahan's specialty? ▼
Mikio Ranahan specializes in Pain Medicine (Anesthesiology) Physician and practices in Chapel Hill, North Carolina.
How much does Mikio Ranahan prescribe under Medicare Part D? ▼
In 2023, Mikio Ranahan wrote 2,073 Medicare Part D claims totaling $74K in drug costs for 313 beneficiaries.
Where is Mikio Ranahan located? ▼
Mikio Ranahan is located at 101 MANNING DR, Chapel Hill, NC, 27514. Phone: (974) 984-1000.
What is Mikio Ranahan's NPI number? ▼
Mikio Ranahan's National Provider Identifier (NPI) is 1437544053, issued on 03/31/2015.
Does Mikio Ranahan prescribe more brand-name or generic drugs? ▼
Mikio Ranahan's prescribing is 2% brand-name and 98% generic drugs by claim count, with $15K in brand drug costs.
Does Mikio Ranahan prescribe opioids? ▼
Yes, Mikio Ranahan had 1,113 opioid claims in 2023 with an opioid prescribing rate of 53.7%.
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 Mikio Ranahan prescribe most often? ▼
Based on 2023 Medicare Part D data, Mikio Ranahan's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Oxycodone-Acetaminophen, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mikio Ranahan accept Medicare? ▼
Mikio Ranahan appears in CMS Medicare data with 2,073 Part D claims and 313 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mikio Ranahan's credentials? ▼
Mikio Ranahan's NPI is 1437544053. 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.