Mary Ann Lillig, D.O.
NPI 1902899834 · Internal Medicine Physician · Grandview, MO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ann Lillig, D.O. is a Internal Medicine Physician provider in Grandview, MO (NPI 1902899834).
Provider details
- NPI number
- 1902899834
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 05-28496 (KS)
Specialties & taxonomies
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,479 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 | 2,115 | $73 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 395 | $101 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 236 | $109 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 205 | $120 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 154 | $106 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 256 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 1,193 | 152 |
| Atorvastatin Calcium | 1,093 | 144 |
| Gabapentin | 862 | 122 |
| Levothyroxine Sodium | 778 | 80 |
| Trazodone Hcl | 661 | 101 |
| Metformin Hcl | 653 | 75 |
| Apixaban |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$118 across 1 record (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 (2)
- 10540 Marty St Ste 100Overland Park, KS 66212-2560Phone: (913) 660-1616Fax: (913) 660-0998
- 10540 Marty St Ste 100Overland Park, KS 66212-2560Phone: (913) 660-1616Fax: (913) 660-0998
Registry dates
- Enumerated
- 2005-08-25
- Last updated
- 2018-04-05
Frequently asked questions
- What is Mary Ann Lillig's NPI number?
- Mary Ann Lillig's National Provider Identifier (NPI) is 1902899834, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ann Lillig's specialty?
- Mary Ann Lillig is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Ann Lillig located?
- Mary Ann Lillig's practice location on file with NPPES is 6301 E 125th St, Grandview, MO 64030-1884.
- What is Mary Ann Lillig's phone number?
- The practice phone number listed in the NPPES registry for Mary Ann Lillig is (913) 660-1616.
- Does Mary Ann Lillig accept Medicare?
- Mary Ann Lillig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ann Lillig's NPI active?
- Yes — Mary Ann Lillig's NPI (1902899834) is active in the NPPES registry as of the last update on 2018-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.