Twylla Tassava, MD
NPI 1336157700 · Internal Medicine Physician · Ypsilanti, MI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Twylla Tassava, MD is a Internal Medicine Physician provider in Ypsilanti, MI (NPI 1336157700).
Provider details
- NPI number
- 1336157700
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- TT068639 (MI)
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
19 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
345 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 | 151 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 82 | $118 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 45 | $132 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 41 | $174 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 15 | $81 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Twylla Tassava's NPI number?
- Twylla Tassava's National Provider Identifier (NPI) is 1336157700, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Twylla Tassava's specialty?
- Twylla Tassava is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Twylla Tassava located?
- Twylla Tassava's practice location on file with NPPES is 5333 Mcauley Dr, Ypsilanti, MI 48197-1014.
- What is Twylla Tassava's phone number?
- The practice phone number listed in the NPPES registry for Twylla Tassava is (734) 712-3980.
- Does Twylla Tassava accept Medicare?
- Twylla Tassava is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Twylla Tassava's NPI active?
- Yes — Twylla Tassava's NPI (1336157700) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.