Mary Kilavos, M.D.
NPI 1609841188 · Internal Medicine Physician · Gaithersburg, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Kilavos, M.D. is a Internal Medicine Physician provider in Gaithersburg, MD (NPI 1609841188).
Provider details
- NPI number
- 1609841188
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD046987 (DC)
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,552 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 | 603 | $104 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 296 | $142 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 209 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 123 | $120 |
| Administration of Influenza Virus VaccineG0008 | 75 | $36 |
| Hemoglobin A1c Level83036 | 61 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 415 | 112 |
| Amlodipine Besylate | 292 | 79 |
| Rosuvastatin Calcium | 242 | 66 |
| Levothyroxine Sodium | 181 | 49 |
| Metformin Hcl | 150 | 39 |
| Lisinopril | 146 | 39 |
| Losartan Potassium |
Practice location
Mailing address
Additional practice locations (1)
- 14955 Shady Grove Rd Ste 100Rockville, MD 20850-8728Phone: (301) 990-3190Fax: (410) 367-2021
Registry dates
- Enumerated
- 2006-02-20
- Last updated
- 2025-04-21
- Certified
- 2025-04-21
Frequently asked questions
- What is Mary Kilavos's NPI number?
- Mary Kilavos's National Provider Identifier (NPI) is 1609841188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Kilavos's specialty?
- Mary Kilavos is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Kilavos located?
- Mary Kilavos's practice location on file with NPPES is 818 West Diamond Avenue, Gaithersburg, MD 20878.
- What is Mary Kilavos's phone number?
- The practice phone number listed in the NPPES registry for Mary Kilavos is (301) 948-8780.
- Does Mary Kilavos accept Medicare?
- Mary Kilavos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Kilavos's NPI active?
- Yes — Mary Kilavos's NPI (1609841188) is active in the NPPES registry as of the last update on 2025-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.