Marilou Oh, PA-C
Medical Physician Assistant · New Haven, CT
Marilou Oh, PA-C is a medical physician assistant with a practice address in New Haven, Connecticut, and NPI 1689761108, issued on Oct 6, 2006. Check the license (Connecticut 001257, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marilou Oh
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 001257 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1 Long Wharf Dr Ste 212, New Haven, CT 06511
- Phone
- (203) 624-4208
- Enumerated
- Oct 6, 2006
- Record last updated
- Nov 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (203) 624-4301
- Medicare enrollment
- Enrolled (PECOS I20160812002212); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 1,138 in Connecticut → Look up another NPI →
Also registered at 1 Long Wharf Dr Ste 212
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mindi Steinhardt, M.D.Pain Medicine (Anesthesiology) Physician1417069543
Verify Marilou Oh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 001257Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average medical physician assistant in 2024
895 Medicare Part D claims for 250 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 49 claims were for opioids.
Most prescribed
- Gabapentin317 claims
- Tizanidine Hcl216 claims
- Celecoxib88 claims
- Duloxetine Hcl87 claims
- Pregabalin46 claims
- Tramadol Hcl28 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): 95.9 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).
Bills Medicare through one group practice
- University OF Utah Specialty ServicesSalt Lake City, UT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marilou Oh among 1,138 medical physician assistant records in Connecticut
Marilou Oh, PA-C is one of 1,138 medical physician assistant records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 76% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2002 · median 2015 among the 732 with a school on file
- Record last updated2021 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
248 medical physician assistant records list a practice address in New Haven
They are 248 of the 9,793 NPPES records with a practice address in New Haven, and 1,138 medical physician assistant records in Connecticut.
All 1,138 in Connecticut → Every provider in New Haven → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Sarah Beres, PANew Haven, CT 065111184632853
- Shelly-Ann Brown, PANew Haven, CT 065111851309587
- Burdeen Camp, PANew Haven, CT 065111700821733
- Janine Defrank, PANew Haven, CT 065111477589349
- Douglas Hood, P.A.New Haven, CT 065111710995204
- Patricia Loving, PANew Haven, CT 065111710921002
- Laura-Anne Malone-Scott, PHYSICIAN ASSISTANTNew Haven, CT 065111780619577
- Charles Park, P.A.New Haven, CT 065111215928072
Common questions
What is Marilou Oh, PA-C's NPI number?
Marilou Oh, PA-C's National Provider Identifier (NPI) is 1689761108, issued on Oct 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marilou Oh, PA-C located?
The NPPES record lists a practice address at 1 Long Wharf Dr Ste 212, New Haven, CT, 06511. Phone: (203) 624-4208. Providers update this record themselves, so call before visiting.
How can I verify Marilou Oh, PA-C's license?
NPPES lists Connecticut license number 001257, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Marilou Oh, PA-C prescribe under Medicare Part D?
In 2024, Marilou Oh, PA-C had 895 Medicare Part D claims for 250 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Marilou Oh, PA-C's MIPS final score?
The 2023 MIPS final score is 95.9 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.