Marilou Oh, PA-C
NPI 1689761108 · Medical Physician Assistant · New Haven, CT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilou Oh, PA-C is a Medical Physician Assistant provider in New Haven, CT (NPI 1689761108).
Provider details
- NPI number
- 1689761108
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 001257 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
395 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 181 | $80 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 102 | $118 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 43 | $110 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 23 | $54 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 21 | $100 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 317 | 85 |
| Tizanidine Hcl | 216 | 94 |
| Celecoxib | 88 | 42 |
| Duloxetine Hcl | 87 | 35 |
| Pregabalin | 46 | 20 |
| Tramadol Hcl | 28 | — |
| Meloxicam | 25 | — |
| Diazepam |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-06
- Last updated
- 2021-11-10
- Certified
- 2021-11-10
Frequently asked questions
- What is Marilou Oh's NPI number?
- Marilou Oh's National Provider Identifier (NPI) is 1689761108, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilou Oh's specialty?
- Marilou Oh is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marilou Oh located?
- Marilou Oh's practice location on file with NPPES is 1 Long Wharf Dr Ste 212, New Haven, CT 06511-5593.
- What is Marilou Oh's phone number?
- The practice phone number listed in the NPPES registry for Marilou Oh is (203) 624-4208.
- Does Marilou Oh accept Medicare?
- Marilou Oh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilou Oh's NPI active?
- Yes — Marilou Oh's NPI (1689761108) is active in the NPPES registry as of the last update on 2021-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.