Mellena Giday, M.D.
NPI 1063830131 · Hospitalist Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mellena Giday, M.D. is a Hospitalist Physician provider in Seattle, WA (NPI 1063830131).
Provider details
- NPI number
- 1063830131
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD60682151 (WA)
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
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
621 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 | 134 | $145 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 109 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 98 | $104 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 85 | $130 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 58 | $151 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 122 | 39 |
| Atorvastatin Calcium | 116 | 54 |
| Amlodipine Besylate | 111 | 42 |
| Rosuvastatin Calcium | 84 | 33 |
| Losartan Potassium | 63 | 27 |
| Lisinopril | 56 | 21 |
| Metoprolol Succinate |
Practice location
Mailing address
Additional practice locations (2)
- 1959 Ne Pacific StRoom Bb-527Seattle, WA 98195-6421Phone: (206) 543-3605
- 1959 Ne Pacific StRoom Bb-527Seattle, WA 98195-6421Phone: (206) 543-3605
Registry dates
- Enumerated
- 2014-04-04
- Last updated
- 2018-03-17
Frequently asked questions
- What is Mellena Giday's NPI number?
- Mellena Giday's National Provider Identifier (NPI) is 1063830131, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mellena Giday's specialty?
- Mellena Giday is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Mellena Giday located?
- Mellena Giday's practice location on file with NPPES is 325 9th Ave, Seattle, WA 98104-2420.
- What is Mellena Giday's phone number?
- The practice phone number listed in the NPPES registry for Mellena Giday is (206) 744-7749.
- Does Mellena Giday accept Medicare?
- Mellena Giday is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mellena Giday's NPI active?
- Yes — Mellena Giday's NPI (1063830131) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.