Tatsuo Yamakawa, M.D.
NPI 1033345855 · Emergency Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tatsuo Yamakawa, M.D. is a Emergency Medicine Physician provider in Houston, TX (NPI 1033345855).
Provider details
- NPI number
- 1033345855
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- P1438 (TX)
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
17 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
362 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 173 | $179 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 115 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 38 | $124 |
| Critical Care, First 30-74 Minutes99291 | 36 | $216 |
Typical Medicare-allowed amounts for these services range $8–$216 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tizanidine Hcl | 57 | 57 |
| Cephalexin | 40 | 38 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 37 | 37 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 36 | 35 |
| Ondansetronbrand: Ondansetron Odt | 32 | 31 |
| Prednisone | 32 | 32 |
| Albuterol Sulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-06-08
- Last updated
- 2024-09-25
- Certified
- 2024-09-25
Frequently asked questions
- What is Tatsuo Yamakawa's NPI number?
- Tatsuo Yamakawa's National Provider Identifier (NPI) is 1033345855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tatsuo Yamakawa's specialty?
- Tatsuo Yamakawa is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tatsuo Yamakawa located?
- Tatsuo Yamakawa's practice location on file with NPPES is 1635 North Loop W, Houston, TX 77008-1532.
- What is Tatsuo Yamakawa's phone number?
- The practice phone number listed in the NPPES registry for Tatsuo Yamakawa is (713) 338-6565.
- Does Tatsuo Yamakawa accept Medicare?
- Tatsuo Yamakawa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tatsuo Yamakawa's NPI active?
- Yes — Tatsuo Yamakawa's NPI (1033345855) is active in the NPPES registry as of the last update on 2024-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.