Ryan O'Neal Parker, M.D. , PH.D.
Anesthesiology Physician · Nashville, TN
Ryan O'Neal Parker, M.D. , PH.D. is an anesthesiology physician with a practice address in Nashville, Tennessee, and NPI 1407142219, issued on Jun 21, 2011. Check the license on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Ryan O'Neal Parker
- Credential
- M.D. , PH.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- TRN17643 FL
LL33694 SC
Self-reported in NPPES; status is on the state search - Practice location
- 1211 21St Avenue South, Nashville, TN 37212
- Phone
- (615) 343-6268
- Enumerated
- Jun 21, 2011
- Record last updated
- Mar 16, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171215002647); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 971 in Tennessee → Look up another NPI →
Also registered at 1211 21St Avenue South
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janet Myers, NPFamily Nurse Practitioner1700851136
Verify Ryan O'Neal Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical ExaminersCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 78.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $28.57
1 payment: food and beverage; the largest payer was Intuitive Surgical, Inc. The 17,774 providers of this specialty with any payment received $669.59 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.
Bills Medicare through one group practice
- Florida Clinical Practice Association IncGainesville, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan O'Neal Parker among 971 anesthesiology physician records in Tennessee
Ryan O'Neal Parker, M.D. , PH.D. is one of 971 anesthesiology physician records with a practice address in Tennessee. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 72% of them.
- NPI issued2011 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2005 among the 611 with a school on file
- Record last updated2016 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
401 anesthesiology physician records list a practice address in Nashville
They are 401 of the 24,357 NPPES records with a practice address in Nashville, and 971 anesthesiology physician records in Tennessee.
All 971 in Tennessee → Every provider in Nashville → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- William Byrd, MDNashville, TN 372121063569937
- Tekuila Carter, MDNashville, TN 372121508907924
- Michael Chester, MDNashville, TN 372121396892279
- William Dudney, M.D.Nashville, TN 372121902199375
- Andrea Feilner, M.D.Nashville, TN 372121538274618
- Miklos Kertai, MD, PHDNashville, TN 372121518124106
- Koffi Kla, MDNashville, TN 372121699781252
- Vijay Makrandi, M.B.B.S; M.D.Nashville, TN 372121083629836
Common questions
What is Ryan O'Neal Parker, M.D. , PH.D.'s NPI number?
Ryan O'Neal Parker, M.D. , PH.D.'s National Provider Identifier (NPI) is 1407142219, issued on Jun 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ryan O'Neal Parker, M.D. , PH.D. located?
The NPPES record lists a practice address at 1211 21St Avenue South, Nashville, TN, 37212. Phone: (615) 343-6268. Providers update this record themselves, so call before visiting.
How can I verify Ryan O'Neal Parker, M.D. , PH.D.'s license?
Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Ryan O'Neal Parker, M.D. , PH.D.'s MIPS final score?
The 2023 MIPS final score is 78.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.