Doctor profile · Federal record

Dr. Mary Kilavos, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Gaithersburg, MD

  • NPI 1609841188
  • Accepts Medicare
  • 24 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
818 West Diamond Avenue, Ste 130
Gaithersburg, MD 20878
(301) 948-8780
fax (301) 519-9093
Additional location
14955 Shady Grove RD Ste 100
Rockville, MD 208508728
(301) 990-3190
fax (410) 367-2021

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
April 21, 2025
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Maryland #D0062800 · District of Columbia #MD046987

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609841188. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,383
Distinct HCPCS
10
Medicare allowed
$130,924
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 532 302 $88
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 244 244 $144
99215 Established patient office or other outpatient visit, 40-54 minutes 158 105 $119
G0008 Administration of influenza virus vaccine 68 67 $35
90662 Influenza vaccine split virus, preservative free 66 65 $71
81002 Urinalysis, manual test 55 48 $3
83036 Hemoglobin a1c level 48 37 $10
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 35 33 $17
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 23 23 $269
G0009 Administration of pneumococcal vaccine 22 22 $33

In context: peer comparison

Among 10 peers in Gaithersburg Internal Medicine Physician, average services per provider: 102. This provider delivers 14× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,824
Patients
526
Total drug cost
$135,924
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 333 90 $5,453
Amlodipine Besylate Generic 211 59 $1,824
Levothyroxine Sodium Generic 177 54 $2,841
Lisinopril Generic 157 36 $1,626
Rosuvastatin Calcium Generic 157 44 $5,400
Losartan Potassium Generic 120 34 $1,771
Metformin Hcl Generic 111 32 $1,443
Simvastatin Generic 104 28 $970
Metoprolol Succinate Generic 93 27 $2,384
Hydrochlorothiazide Generic 78 21 $466

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Kilavos's medical specialty?
Dr. Mary Kilavos practices Internal Medicine Physician in Gaithersburg, MD.
Where does Dr. Mary Kilavos practice?
Dr. Mary Kilavos practices at 818 West Diamond Avenue, Gaithersburg, MD 20878. Office phone: 3019488780.
What is Dr. Mary Kilavos's NPI?
Dr. Mary Kilavos's National Provider Identifier (NPI) is 1609841188, issued by NPPES.
Does Dr. Mary Kilavos accept Medicare assignment?
Yes. Dr. Mary Kilavos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Kilavos commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.