Marcus Tielker, M.D.
NPI 1124263215 · Pulmonary Disease Physician · Indianapolis, IN
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Tielker, M.D. is a Pulmonary Disease Physician provider in Indianapolis, IN (NPI 1124263215).
Provider details
- NPI number
- 1124263215
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 01064146A (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,239 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 343 | $72 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 228 | $108 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 128 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 100 | $83 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 84 | $160 |
| Critical Care, First 30-74 Minutes99291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 266 | 64 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 190 | 65 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 73 | 18 |
| Prednisone | 66 | 42 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 52 | 13 |
| Montelukast Sodium | 46 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,407 across 115 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
Registry dates
- Enumerated
- 2008-12-04
- Last updated
- 2014-12-05
Frequently asked questions
- What is Marcus Tielker's NPI number?
- Marcus Tielker's National Provider Identifier (NPI) is 1124263215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Tielker's specialty?
- Marcus Tielker is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Marcus Tielker located?
- Marcus Tielker's practice location on file with NPPES is 8075 N Shadeland Ave, Indianapolis, IN 46250-2693.
- What is Marcus Tielker's phone number?
- The practice phone number listed in the NPPES registry for Marcus Tielker is (317) 887-7880.
- Does Marcus Tielker accept Medicare?
- Marcus Tielker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Tielker's NPI active?
- Yes — Marcus Tielker's NPI (1124263215) is active in the NPPES registry as of the last update on 2014-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.