Diana Otuwa, MD
NPI 1407432594 · Family Medicine Physician · Whittier, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Otuwa, MD is a Family Medicine Physician provider in Whittier, CA (NPI 1407432594).
Provider details
- NPI number
- 1407432594
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A187499 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 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
21 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 | 21 | $99 |
Typical Medicare-allowed amounts for these services range $99–$99 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 98 | 46 |
| Lisinopril | 68 | 35 |
| Metformin Hcl | 59 | 28 |
| Amlodipine Besylate | 55 | 30 |
| Losartan Potassium | 41 | 22 |
| Levothyroxine Sodium | 38 | 21 |
| Apixaban |
Practice location
Mailing address
Additional practice locations (1)
- 12291 Washington Blvd Ste 500Whittier, CA 90606-2551Phone: (562) 698-0811
Registry dates
- Enumerated
- 2021-03-20
- Last updated
- 2024-06-18
- Certified
- 2024-06-18
Frequently asked questions
- What is Diana Otuwa's NPI number?
- Diana Otuwa's National Provider Identifier (NPI) is 1407432594, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Otuwa's specialty?
- Diana Otuwa is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Otuwa located?
- Diana Otuwa's practice location on file with NPPES is 12291 Washington Blvd Ste 500, Whittier, CA 90606-2551.
- What is Diana Otuwa's phone number?
- The practice phone number listed in the NPPES registry for Diana Otuwa is (562) 698-0811.
- Does Diana Otuwa accept Medicare?
- Diana Otuwa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Otuwa's NPI active?
- Yes — Diana Otuwa's NPI (1407432594) is active in the NPPES registry as of the last update on 2024-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.