Mary Kellis, M.D.
NPI 1942405790 · Endocrinology, Diabetes & Metabolism Physician · Cleveland, OH
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Kellis, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Cleveland, OH (NPI 1942405790).
Provider details
- NPI number
- 1942405790
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 238508 (NY)
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 tenure28% of score
19 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
405 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 196 | $99 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 79 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $70 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 37 | $134 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 27 | $33 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 565 | 174 |
| Levothyroxine Sodiumbrand: Synthroid | 201 | 58 |
| Semaglutidebrand: Ozempic | 174 | 41 |
| Metformin Hcl | 112 | 36 |
| Tirzepatidebrand: Mounjaro | 93 | 19 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 78 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-20
- Last updated
- 2015-01-09
Frequently asked questions
- What is Mary Kellis's NPI number?
- Mary Kellis's National Provider Identifier (NPI) is 1942405790, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Kellis's specialty?
- Mary Kellis is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Kellis located?
- Mary Kellis's practice location on file with NPPES is Cleveland Clinic F 20, Cleveland, OH 44195-0001.
- What is Mary Kellis's phone number?
- The practice phone number listed in the NPPES registry for Mary Kellis is (216) 444-6568.
- Does Mary Kellis accept Medicare?
- Mary Kellis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Kellis's NPI active?
- Yes — Mary Kellis's NPI (1942405790) is active in the NPPES registry as of the last update on 2015-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.