Mei Ou, NP
NPI 1538783956 · Family Nurse Practitioner · Sonoma, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mei Ou, NP is a Family Nurse Practitioner provider in Sonoma, CA (NPI 1538783956).
Provider details
- NPI number
- 1538783956
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 95014001 (CA)
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 tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
693 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 286 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 144 | $137 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 126 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 86 | $93 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 23 | $93 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 66 | 29 |
| Amlodipine Besylate | 45 | 19 |
| Gabapentin | 40 | 16 |
| Omeprazole | 36 | 11 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 30 | 30 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 29 | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$324 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-06-01
- Last updated
- 2020-10-06
- Certified
- 2020-10-05
Frequently asked questions
- What is Mei Ou's NPI number?
- Mei Ou's National Provider Identifier (NPI) is 1538783956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mei Ou's specialty?
- Mei Ou is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mei Ou located?
- Mei Ou's practice location on file with NPPES is 19270 Sonoma Hwy, Sonoma, CA 95476.
- What is Mei Ou's phone number?
- The practice phone number listed in the NPPES registry for Mei Ou is (707) 939-6070.
- Does Mei Ou accept Medicare?
- Mei Ou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mei Ou's NPI active?
- Yes — Mei Ou's NPI (1538783956) is active in the NPPES registry as of the last update on 2020-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.