John Joseph Oconnor, MD
General Practice Physician · Prescott, AZ
John Joseph Oconnor, MD is a general practice physician with a practice address in Prescott, Arizona, and NPI 1437157203, issued on Jul 14, 2005. Check the license (Arizona 25148, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Joseph Oconnor
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 25148 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3109 Clearwater Drive, Prescott, AZ 86305
- Phone
- (928) 778-1066
- Enumerated
- Jul 14, 2005
- Record last updated
- Sep 3, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (928) 778-7270
- Medicaid ID
- 379877 AZ
- Medicare enrollment
- Enrolled (PECOS I20050524001234); may accept Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 228 in Arizona → Look up another NPI →
Verify John Joseph Oconnor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 25148Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average general practice physician in 2024
332 Medicare Part D claims for 55 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
Most prescribed
- Carbidopa-Levodopa36 claims
- Carbamazepine Er26 claims
- Lamotrigine23 claims
- Levetiracetam23 claims
- Clopidogrel19 claims
- Venlafaxine Hcl Er15 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.
John Joseph Oconnor among 228 general practice physician records in Arizona
John Joseph Oconnor, MD is one of 228 general practice physician records with a practice address in Arizona. 48% 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, 92% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated1986 · median 2011 among the 55 with a school on file
- Record last updated2013 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in Arizona
There are 228 general practice physician records in Arizona.
All 228 in Arizona → Every provider in Prescott → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Gary Melvin, M.D.Prescott, AZ 863031215960117
- Julia Davis, MDPrescott, AZ 863011396206603
- Kelly Tracey, D.O.Prescott, AZ 863011255441143
- Margaret Shamonsky, M.D.Prescott, AZ 863131215044938
- Shahrokh Salmasi, M.D.Bagdad, AZ 863211649375437
- John Adams, M.D.Sedona, AZ 863361316065808
- Gerald Bronstein, M.D.Sedona, AZ 863361316973175
- Forrest Lanchbury, MDSedona, AZ 863361063460830
Common questions
What is John Joseph Oconnor, MD's NPI number?
John Joseph Oconnor, MD's National Provider Identifier (NPI) is 1437157203, issued on Jul 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Joseph Oconnor, MD located?
The NPPES record lists a practice address at 3109 Clearwater Drive, Prescott, AZ, 86305. Phone: (928) 778-1066. Providers update this record themselves, so call before visiting.
How can I verify John Joseph Oconnor, MD's license?
NPPES lists Arizona license number 25148, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Joseph Oconnor, MD prescribe under Medicare Part D?
In 2024, John Joseph Oconnor, MD had 332 Medicare Part D claims for 55 beneficiaries; the average among general practice physician prescribers was 3,030. 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.