Chad Michael O'Nan, MD
Family Medicine Physician · Carmel, IN
Chad Michael O'Nan, MD is a family medicine physician with a practice address in Carmel, Indiana, and NPI 1194708107, issued on Nov 23, 2005. Check the license (Indiana 01056331A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Chad Michael O'Nan
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 01056331A IN
Self-reported in NPPES; status is on the state search - Practice location
- 12174 N Meridian St Ste 300, Carmel, IN 46032
- Phone
- (317) 688-9000
- Enumerated
- Nov 23, 2005
- Record last updated
- Dec 12, 2022
- Fax
- (317) 680-9900
- Medicaid ID
- 200429580 IN
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,506 in Indiana → Look up another NPI →
Also registered at 12174 N Meridian St Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Chad Michael O'Nan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01056331ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average family medicine physician in 2024
1,170 Medicare Part D claims for 96 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Atorvastatin Calcium70 claims
- Metoprolol Succinate38 claims
- Rosuvastatin Calcium37 claims
- Amlodipine Besylate36 claims
- Levothyroxine Sodium36 claims
- Alprazolam32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $104.24
5 payments; by number, the most common kind was food and beverage; the largest payer was Aimmune Therapeutics, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Chad Michael O'Nan among 3,506 family medicine physician records in Indiana
Chad Michael O'Nan, MD is one of 3,506 family medicine physician records with a practice address in Indiana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 81% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2022 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
73 family medicine physician records list a practice address in Carmel
They are 73 of the 3,727 NPPES records with a practice address in Carmel, and 3,506 family medicine physician records in Indiana.
All 3,506 in Indiana → Every provider in Carmel → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Aaron Ashabraner, MDCarmel, IN 460321407841513
- Jeffrey Collier, MDCarmel, IN 460321942283833
- Sanju Daftari, MDCarmel, IN 460321013955764
- Adrienne Gomez, M.D.Carmel, IN 460321568440634
- James Horton, MDCarmel, IN 460321164407326
- Brian Howse, MDCarmel, IN 460321669454260
- Peiyi Hu, MDCarmel, IN 460321053334854
- Andrew McLaren, MDCarmel, IN 460321710960844
Common questions
What is Chad Michael O'Nan, MD's NPI number?
Chad Michael O'Nan, MD's National Provider Identifier (NPI) is 1194708107, issued on Nov 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Chad Michael O'Nan, MD located?
The NPPES record lists a practice address at 12174 N Meridian St Ste 300, Carmel, IN, 46032. Phone: (317) 688-9000. Providers update this record themselves, so call before visiting.
How can I verify Chad Michael O'Nan, MD's license?
NPPES lists Indiana license number 01056331A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chad Michael O'Nan, MD prescribe under Medicare Part D?
In 2024, Chad Michael O'Nan, MD had 1,170 Medicare Part D claims for 96 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.