Ronald J. Walker, M.D.
Otolaryngology Physician · New Haven, CT
Ronald J. Walker, M.D. is an otolaryngology physician with a practice address in New Haven, Connecticut, and NPI 1336340009, issued on May 30, 2007. Check the license (Connecticut 67066, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ronald J. Walker
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License numbers
- 67066 CT
2006023188 MO
44782 TN
Self-reported in NPPES; status is on the state search - Practice location
- 20 York St, New Haven, CT 06510
- Phone
- (203) 785-5430
- Enumerated
- May 30, 2007
- Record last updated
- Dec 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100702000360); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 146 in Connecticut → Look up another NPI →
Also registered at 20 York St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
- Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
- Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
- Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
- Sarah AbdallahPsychiatry Physician1740800952
- Usama Abdelghany, PHARM DOncology Pharmacist1548827843
Verify Ronald J. Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 67066Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average otolaryngology physician in 2024
116 Medicare Part D claims for 43 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Oxycodone Hcl33 claims
- Levothyroxine Sodium13 claims
- Amoxicillin-Clavulanate Potass11 claims
- Chlorhexidine Gluconate11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.6 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: $24.44
1 payment: food and beverage; the largest payer was Ethicon US, LLC. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Ssm Health Care GroupSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald J. Walker among 146 otolaryngology physician records in Connecticut
Ronald J. Walker, M.D. is one of 146 otolaryngology physician records with a practice address in Connecticut. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 32% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2004 · median 2002 among the 103 with a school on file
- Record last updated2020 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Connecticut
There are 146 otolaryngology physician records in Connecticut.
All 146 in Connecticut → Every provider in New Haven → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Catherine Brophy, MDNew Haven, CT 065101629760061
- Joseph Earles, MDNew Haven, CT 065101477049138
- Saral Mehra, M.D.New Haven, CT 065101841458957
- Sen Ninan, BA, MDNew Haven, CT 065101336775923
- Tareq SawanNew Haven, CT 065101538517867
- Erik Waldman, M.D.New Haven, CT 065101336275916
- Michael Weinstock, M.D.New Haven, CT 065101639586464
- Mark Bianchi, MDNew Haven, CT 065111073574166
Common questions
What is Ronald J. Walker, M.D.'s NPI number?
Ronald J. Walker, M.D.'s National Provider Identifier (NPI) is 1336340009, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ronald J. Walker, M.D. located?
The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 785-5430. Providers update this record themselves, so call before visiting.
How can I verify Ronald J. Walker, M.D.'s license?
NPPES lists Connecticut license number 67066, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ronald J. Walker, M.D. prescribe under Medicare Part D?
In 2024, Ronald J. Walker, M.D. had 116 Medicare Part D claims for 43 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Ronald J. Walker, M.D.'s MIPS final score?
The 2023 MIPS final score is 81.6 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.