Joshua Onyango, MD
NPI 1851957906 · Internal Medicine Physician · Nashville, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joshua Onyango, MD is a Internal Medicine Physician provider in Nashville, TN (NPI 1851957906).
Provider details
- NPI number
- 1851957906
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 70701 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 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
304 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 158 | $76 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 60 | $124 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 38 | $110 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 23 | $114 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 13 | $153 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 12 |
Practice location
Mailing address
Additional practice locations (1)
- 20 York StNew Haven, CT 06510-3220Phone: (203) 688-4242
Registry dates
- Enumerated
- 2019-05-14
- Last updated
- 2023-08-09
- Certified
- 2023-08-09
Frequently asked questions
- What is Joshua Onyango's NPI number?
- Joshua Onyango's National Provider Identifier (NPI) is 1851957906, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joshua Onyango's specialty?
- Joshua Onyango is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joshua Onyango located?
- Joshua Onyango's practice location on file with NPPES is 3601 the Vanderbilt Clinic, Nashville, TN 37232-3220.
- What is Joshua Onyango's phone number?
- The practice phone number listed in the NPPES registry for Joshua Onyango is (615) 322-3000.
- Does Joshua Onyango accept Medicare?
- Joshua Onyango is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joshua Onyango's NPI active?
- Yes — Joshua Onyango's NPI (1851957906) is active in the NPPES registry as of the last update on 2023-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.