Irvin Chung Oh, M.D.
Orthopaedic Surgery Physician · New Haven, CT
Irvin Chung Oh, M.D. is an orthopaedic surgery physician with a practice address in New Haven, Connecticut, and NPI 1174784896, issued on Jun 25, 2008. Check the license (Connecticut 67489, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Irvin Chung Oh
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- 67489 CT
254107 NY
Self-reported in NPPES; status is on the state search - Practice location
- 800 Howard Ave FL 1, New Haven, CT 06519
- Phone
- (203) 785-2579
- Enumerated
- Jun 25, 2008
- Record last updated
- Mar 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (203) 785-7232
- Medicare enrollment
- Enrolled (PECOS I20210408002261); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 348 in Connecticut → Look up another NPI →
Also registered at 800 Howard Ave FL 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Decker, APRNFamily Nurse Practitioner1609662790
- Megan Eiser-Nolan, APRNAdult Health Nurse Practitioner1841847365
- Jenna Faulkner-Filosa, MSW, LCSWClinical Social Worker1972087823
- David Gutierrez, M.D.Pain Medicine (Physical Medicine & Rehabilitation) Physician1760828172
- Amy Haydon-Ryan, BS, PA-CPhysician Assistant1598938078
- Charlene Justin, PA-CMedical Physician Assistant1578759536
Verify Irvin Chung Oh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 67489Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
93 Medicare Part D claims for 51 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 14 claims were for opioids.
Most prescribed
- Gabapentin50 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): 73.6 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: $145.08
1 payment: food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 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 2 group practices
- Rehabilitation Associates IncFairfield, CT
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Irvin Chung Oh among 348 orthopaedic surgery physician records in Connecticut
Irvin Chung Oh, M.D. is one of 348 orthopaedic surgery physician records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 69% of them.
- NPI issued2008 · 69% of these records are older, 27% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2000 · median 2000 among the 224 with a school on file
- Record last updated2021 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Connecticut
There are 348 orthopaedic surgery physician records in Connecticut.
All 348 in Connecticut → Every provider in New Haven → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Michael Baumgaertner, MDNew Haven, CT 065191538143532
- Gary Friedlaender, MDNew Haven, CT 065191730163171
- John Fulkerson, MDNew Haven, CT 065191184621419
- Jonathan Grauer, MDNew Haven, CT 065191962486399
- Peter Jokl, MDNew Haven, CT 065191073597407
- Francis Lee, MDNew Haven, CT 065191043240997
- Michael Leslie, DONew Haven, CT 065191215147699
- Dieter Lindskog, MDNew Haven, CT 065191023092459
Common questions
What is Irvin Chung Oh, M.D.'s NPI number?
Irvin Chung Oh, M.D.'s National Provider Identifier (NPI) is 1174784896, issued on Jun 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Irvin Chung Oh, M.D. located?
The NPPES record lists a practice address at 800 Howard Ave FL 1, New Haven, CT, 06519. Phone: (203) 785-2579. Providers update this record themselves, so call before visiting.
How can I verify Irvin Chung Oh, M.D.'s license?
NPPES lists Connecticut license number 67489, 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 Irvin Chung Oh, M.D. prescribe under Medicare Part D?
In 2024, Irvin Chung Oh, M.D. had 93 Medicare Part D claims for 51 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Irvin Chung Oh, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.6 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.