Vivian Umeozulu, M.D.
NPI 1598964967 · Internal Medicine Physician · Johns Creek, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivian Umeozulu, M.D. is a Internal Medicine Physician provider in Johns Creek, GA (NPI 1598964967).
Provider details
- NPI number
- 1598964967
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D0067311 (MD)
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
18 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
831 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 | 425 | $91 |
| Testing for Presence of Drug, By Chemistry Analyzers80307 | 406 | $61 |
Typical Medicare-allowed amounts for these services range $61–$91 (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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 488 | 43 |
| Buprenorphine Hcl | 59 | — |
| Buprenorphine Hcl/Naloxone Hclbrand: Suboxone | 36 | 11 |
| Buprenorphine Hcl/Naloxone Hclbrand: Zubsolv | 36 | — |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphet Er | 17 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-16
- Last updated
- 2025-11-04
- Certified
- 2025-11-04
Frequently asked questions
- What is Vivian Umeozulu's NPI number?
- Vivian Umeozulu's National Provider Identifier (NPI) is 1598964967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Umeozulu's specialty?
- Vivian Umeozulu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Vivian Umeozulu located?
- Vivian Umeozulu's practice location on file with NPPES is 1030 Matheson Way, Johns Creek, GA 30022-5514.
- What is Vivian Umeozulu's phone number?
- The practice phone number listed in the NPPES registry for Vivian Umeozulu is (800) 809-6588.
- Does Vivian Umeozulu accept Medicare?
- Vivian Umeozulu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivian Umeozulu's NPI active?
- Yes — Vivian Umeozulu's NPI (1598964967) is active in the NPPES registry as of the last update on 2025-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.