Theodore Zbiegien, MD
NPI 1245227693 · Family Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theodore Zbiegien, MD is a Family Medicine Physician provider in Chicago, IL (NPI 1245227693).
Provider details
- NPI number
- 1245227693
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036087594 (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
886 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 319 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 284 | $133 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 196 | $93 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 87 | $133 |
Typical Medicare-allowed amounts for these services range $9–$133 (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 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 136 | 35 |
| Rosuvastatin Calcium | 111 | 33 |
| Alprazolam | 110 | 29 |
| Losartan Potassium | 100 | 31 |
| Atorvastatin Calcium | 84 | 29 |
| Furosemide | 78 | 27 |
| Olmesartan Medoxomil | 78 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-30
- Last updated
- 2010-03-11
Frequently asked questions
- What is Theodore Zbiegien's NPI number?
- Theodore Zbiegien's National Provider Identifier (NPI) is 1245227693, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theodore Zbiegien's specialty?
- Theodore Zbiegien is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Theodore Zbiegien located?
- Theodore Zbiegien's practice location on file with NPPES is 7447 W Talcott Ave, Chicago, IL 60631-3745.
- What is Theodore Zbiegien's phone number?
- The practice phone number listed in the NPPES registry for Theodore Zbiegien is (773) 467-8950.
- Does Theodore Zbiegien accept Medicare?
- Theodore Zbiegien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theodore Zbiegien's NPI active?
- Yes — Theodore Zbiegien's NPI (1245227693) is active in the NPPES registry as of the last update on 2010-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.