Onyekachi Obi, M.D.
NPI 1639500895 · Critical Care Medicine (Internal Medicine) Physician · Winter Garden, FL
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Onyekachi Obi, M.D. is a Critical Care Medicine (Internal Medicine) Physician provider in Winter Garden, FL (NPI 1639500895).
Provider details
- NPI number
- 1639500895
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- ME130760 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
214 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 125 | $208 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 62 | $116 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 27 | $170 |
Typical Medicare-allowed amounts for these services range $116–$208 (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.
Practice location
Mailing address
Additional practice locations (3)
- 604 Stone AveTalladega, AL 35160-2217Phone: (256) 362-8111Fax: (256) 761-7543
- 7978 Lake Wilson RdDavenport, FL 33896-9616Phone: (321) 843-7900Fax: (321) 843-3557
- 601 E Rollins StOrlando, FL 32803-1248Phone: (407) 303-7283Fax: (407) 303-0347
Registry dates
- Enumerated
- 2013-12-12
- Last updated
- 2026-04-09
- Certified
- 2026-04-09
Frequently asked questions
- What is Onyekachi Obi's NPI number?
- Onyekachi Obi's National Provider Identifier (NPI) is 1639500895, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Onyekachi Obi's specialty?
- Onyekachi Obi is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Onyekachi Obi located?
- Onyekachi Obi's practice location on file with NPPES is 17000 Porter Rd, Winter Garden, FL 34787-8915.
- What is Onyekachi Obi's phone number?
- The practice phone number listed in the NPPES registry for Onyekachi Obi is (321) 841-3467.
- Does Onyekachi Obi accept Medicare?
- Onyekachi Obi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Onyekachi Obi's NPI active?
- Yes — Onyekachi Obi's NPI (1639500895) is active in the NPPES registry as of the last update on 2026-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.