Nnenna Nwogu, M.D.
NPI 1255711461 · Internal Medicine Physician · Emeryville, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nnenna Nwogu, M.D. is a Internal Medicine Physician provider in Emeryville, CA (NPI 1255711461).
Provider details
- NPI number
- 1255711461
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 294294 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,243 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 453 | $95 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 254 | $134 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 151 | $154 |
| 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 | 101 | $19 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 51 | $181 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 241 | 86 |
| Amlodipine Besylate | 155 | 58 |
| Rosuvastatin Calcium | 123 | 50 |
| Lisinopril | 105 | 30 |
| Losartan Potassium | 99 | 39 |
| Levothyroxine Sodium | 97 | 35 |
| Metformin Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 550 1st AveNew York, NY 10016Phone: (212) 263-5506
Registry dates
- Enumerated
- 2015-06-02
- Last updated
- 2024-04-22
- Certified
- 2024-04-22
Frequently asked questions
- What is Nnenna Nwogu's NPI number?
- Nnenna Nwogu's National Provider Identifier (NPI) is 1255711461, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nnenna Nwogu's specialty?
- Nnenna Nwogu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nnenna Nwogu located?
- Nnenna Nwogu's practice location on file with NPPES is 5800 Hollis St, Emeryville, CA 94608-2016.
- What is Nnenna Nwogu's phone number?
- The practice phone number listed in the NPPES registry for Nnenna Nwogu is (510) 806-2100.
- Does Nnenna Nwogu accept Medicare?
- Nnenna Nwogu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nnenna Nwogu's NPI active?
- Yes — Nnenna Nwogu's NPI (1255711461) is active in the NPPES registry as of the last update on 2024-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.