Physician Profile
Mariko Welch Harper, MD
Unclaimed ProfileAbout Dr. Harper
Based in Seattle, WA, Mariko Welch Harper, MD is listed in the NPI registry under cardiovascular disease (cardiology). Mariko is also listed as specializing in cardiovascular disease. Medicare claims data shows Mariko provided 3,013 services to 2,493 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (206) 341-1111
- Email not available
Practice Locations
1100 9TH AVE
Seattle, WA 98101
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
3,013 services · 2,493 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
34 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
408 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
251 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
193 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
133 |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
116 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
115 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
115 |
| Anticoagulant management of patient taking warfarin | Treatment | 93793 |
106 |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
99 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiovascular diseases at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other cardiovascular diseases in Seattle 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in WA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Harper?
Dr. Harper is a cardiovascular disease (cardiology) in Seattle, WA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
What is Dr. Harper's address?
Dr. Harper is listed at 1100 9TH AVE, Seattle, WA 98101. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Harper?
The number on file is (206) 341-1111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Harper?
Dr. Harper's National Provider Identifier is 1336448513. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Harper train?
Dr. Harper attended Other, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Harper have?
Dr. Harper has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Harper perform?
According to Medicare billing data, Dr. Harper performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and ultrasound of heart with color-depicted blood flow, rate, direction and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Harper's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Harper. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.