Doctor profile · Federal record

Dr. Melissa Mossar, ARNP, DNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Nurse Practitioner · Seattle, WA

  • NPI 1790158376
  • Accepts Medicare
  • 4 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1455 Nw Leary Way Ste 250
Seattle, WA 981075138
(206) 520-5000
Additional location
747 Broadway
Seattle, WA 981224379
(206) 386-6000
Mailing address
Po Box 50095
Seattle, WA 981455095

Credentials & registration

NPPES · NUCC
NPI registered
November 2015 — 11 yrs on file
Profile last updated
January 12, 2023
Year of graduation
2022 — 4 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Washington #AP61310279
Medicaid
WA #1790158376

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1790158376. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
141
Distinct HCPCS
6
Medicare allowed
$9,794
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 44 41 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 44 43 $119
99213 Established patient office or other outpatient visit, 20-29 minutes 17 17 $85
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 13 13 $120
G0008 Administration of influenza virus vaccine 12 12 $29
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 11 11 $76

In context: peer comparison

Among 82 peers in this city , average services per provider: 58. This provider delivers 2.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
36
Patients
12
Total drug cost
$920
Drug Type Claims Patients Total cost
Diclofenac Sodium Generic 12 0 $659
Omeprazole Generic 12 0 $136
Paxlovid (Eua) (Nirmatrelvir/Ritonavir) Brand 12 12 $125

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Melissa Mossar's medical specialty?
Dr. Melissa Mossar practices Family Nurse Practitioner in Seattle, WA.
Where does Dr. Melissa Mossar practice?
Dr. Melissa Mossar practices at 1455 Nw Leary Way Ste 250, Seattle, WA 981075138. Office phone: 2065205000.
What is Dr. Melissa Mossar's NPI?
Dr. Melissa Mossar's National Provider Identifier (NPI) is 1790158376, issued by NPPES.
Does Dr. Melissa Mossar accept Medicare assignment?
Yes. Dr. Melissa Mossar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Melissa Mossar commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.