Ei Ei Thu, MD
NPI 1578988994 · Internal Medicine Physician · Redlands, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ei Ei Thu, MD is a Internal Medicine Physician provider in Redlands, CA (NPI 1578988994).
Provider details
- NPI number
- 1578988994
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 142454 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- General Acute Care Hospital282N00000X
Hospitals
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
269 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 | 174 | $79 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 72 | $115 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 23 | $130 |
Typical Medicare-allowed amounts for these services range $79–$130 (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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 53 | 39 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 41 | 19 |
| Atorvastatin Calcium | 40 | 24 |
| Apixabanbrand: Eliquis | 35 | 21 |
| Pantoprazole Sodium | 29 | 16 |
| Losartan Potassium | 25 | 13 |
Practice location
Mailing address
Additional practice locations (1)
- 374 Stockholm StBrooklyn, NY 11237-4006Phone: (718) 963-7272
Registry dates
- Enumerated
- 2014-02-21
- Last updated
- 2026-01-13
- Certified
- 2026-01-13
Frequently asked questions
- What is Ei Ei Thu's NPI number?
- Ei Ei Thu's National Provider Identifier (NPI) is 1578988994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ei Ei Thu's specialty?
- Ei Ei Thu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ei Ei Thu located?
- Ei Ei Thu's practice location on file with NPPES is 2 W Fern Ave, Redlands, CA 92373-5916.
- What is Ei Ei Thu's phone number?
- The practice phone number listed in the NPPES registry for Ei Ei Thu is (909) 793-3311.
- Does Ei Ei Thu accept Medicare?
- Ei Ei Thu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ei Ei Thu's NPI active?
- Yes — Ei Ei Thu's NPI (1578988994) is active in the NPPES registry as of the last update on 2026-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.