Ermias Tilahun, M.D.
NPI 1285628768 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ermias Tilahun, M.D. is a Internal Medicine Physician provider in Chicago, IL (NPI 1285628768).
Provider details
- NPI number
- 1285628768
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-094888 (IL)
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
20 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
1,754 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 Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 1,360 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 283 | $132 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 | 96 | $137 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 15 | $133 |
Typical Medicare-allowed amounts for these services range $76–$137 (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 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 207 | 51 |
| Losartan Potassium | 134 | 29 |
| Metformin Hcl | 126 | 34 |
| Potassium Chloride | 95 | 11 |
| Levothyroxine Sodium | 91 | 19 |
| Tamsulosin Hcl | 85 | 25 |
| Omeprazole | 85 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-09
- Last updated
- 2021-01-06
- Certified
- 2021-01-06
Frequently asked questions
- What is Ermias Tilahun's NPI number?
- Ermias Tilahun's National Provider Identifier (NPI) is 1285628768, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ermias Tilahun's specialty?
- Ermias Tilahun is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ermias Tilahun located?
- Ermias Tilahun's practice location on file with NPPES is 5015 N Paulina St Ste 101, Chicago, IL 60640-2756.
- What is Ermias Tilahun's phone number?
- The practice phone number listed in the NPPES registry for Ermias Tilahun is (773) 907-3550.
- Does Ermias Tilahun accept Medicare?
- Ermias Tilahun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ermias Tilahun's NPI active?
- Yes — Ermias Tilahun's NPI (1285628768) is active in the NPPES registry as of the last update on 2021-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.