Ludmil Lazarov, MD
NPI 1285826404 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ludmil Lazarov, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1285826404).
Provider details
- NPI number
- 1285826404
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD491082C (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
18 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Telehealth Consultation, Emergency Department Or Initial Inpatient, Typically 30 Minutes Communicating With the Patient Via TelehealthG0425 | 18 | $85 |
Typical Medicare-allowed amounts for these services range $85–$85 (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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 13 |
| Lisinopril | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$243 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 2222 N Nevada AveColorado Springs, CO 80907-6819Phone: (719) 776-8040Fax: (719) 776-8050
- 3055 N Reserve St Ste DMissoula, MT 59808-1395Phone: (406) 327-7000Fax: (406) 329-1927
- 575 Coal Valley Rd Ste 204Clairton, PA 15025-3724Phone: (412) 466-2220Fax: (412) 466-4048
- 5926 N Santa Monica BlvdMilwaukee, WI 53217-4618Phone: (773) 715-8034
Registry dates
- Enumerated
- 2007-08-11
- Last updated
- 2026-06-02
- Certified
- 2026-06-02
Frequently asked questions
- What is Ludmil Lazarov's NPI number?
- Ludmil Lazarov's National Provider Identifier (NPI) is 1285826404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ludmil Lazarov's specialty?
- Ludmil Lazarov is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ludmil Lazarov located?
- Ludmil Lazarov's practice location on file with NPPES is 820 S Wood St # Mc793, Chicago, IL 60612-4325.
- What is Ludmil Lazarov's phone number?
- The practice phone number listed in the NPPES registry for Ludmil Lazarov is (773) 715-8034.
- Does Ludmil Lazarov accept Medicare?
- Ludmil Lazarov is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ludmil Lazarov's NPI active?
- Yes — Ludmil Lazarov's NPI (1285826404) is active in the NPPES registry as of the last update on 2026-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.