John Peter O'Brien, MD.
Family Medicine Physician · Cazenoviz, NY
John Peter O'Brien, MD. is a family medicine physician with a practice address in Cazenoviz, New York, and NPI 1013123579, issued on May 14, 2007. Check the license (New York 243461, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John Peter O'Brien
- Credential
- MD.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 243461 NY
Self-reported in NPPES; status is on the state search - Practice location
- 132 1/2 Albany Street, Cazenoviz, NY 13035
- Phone
- (315) 655-8171
- Enumerated
- May 14, 2007
- Record last updated
- Jan 23, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (315) 655-5923
- Medicaid ID
- 02889572 NY
- Medicare enrollment
- Enrolled (PECOS I20071022000383); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,417 in New York → Look up another NPI →
Also registered at 132 1/2 Albany Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dawn Brink-Cymerman, MD.Family Medicine Physician1689604357
- Gerald Edwards, MD.Family Medicine Physician1487673125
Verify John Peter O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 243461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% more Medicare Part D claims than the average family medicine physician in 2024
3,795 Medicare Part D claims for 509 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 101 claims were for opioids.
Most prescribed
- Atorvastatin Calcium273 claims
- Losartan Potassium140 claims
- Lisinopril135 claims
- Amlodipine Besylate118 claims
- Levothyroxine Sodium113 claims
- Omeprazole91 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.
Bills Medicare through 2 group practices
- St Josephs Hospital Health CenterSyracuse, NY
- St Josephs Medical PCSyracuse, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Peter O'Brien among 6,417 family medicine physician records in New York
John Peter O'Brien, MD. is one of 6,417 family medicine physician records with a practice address in New York. 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 2007, is newer than 42% of them.
- NPI issued2007 · 42% of these records are older, 51% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2004 · median 2007 among the 4,188 with a school on file
- Record last updated2014 · 58% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in New York
There are 6,417 family medicine physician records in New York.
All 6,417 in New York → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Karen Bertrand, MDCazenovia, NY 130351053566299
- Dawn Brink-Cymerman, MD.Cazenoviz, NY 130351689604357
- Cassandra Cheung, MDCazenovia, NY 130351689329765
- Gerald Edwards, MD.Cazenoviz, NY 130351487673125
- Thomas Green, M.D.Cazenovia, NY 130351538130075
- Jocelyn Morin, MDCazenovia, NY 130351861875437
- Scott Treatman, DOCazenovia, NY 130351669662144
- Michael Holcomb, MDCentral Square, NY 130361396495099
Common questions
What is John Peter O'Brien, MD.'s NPI number?
John Peter O'Brien, MD.'s National Provider Identifier (NPI) is 1013123579, issued on May 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Peter O'Brien, MD. located?
The NPPES record lists a practice address at 132 1/2 Albany Street, Cazenoviz, NY, 13035. Phone: (315) 655-8171. Providers update this record themselves, so call before visiting.
How can I verify John Peter O'Brien, MD.'s license?
NPPES lists New York license number 243461, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Peter O'Brien, MD. prescribe under Medicare Part D?
In 2024, John Peter O'Brien, MD. had 3,795 Medicare Part D claims for 509 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.