Chieh Ma, MD
NPI 1770521932 · Internal Medicine Physician · Everett, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chieh Ma, MD is a Internal Medicine Physician provider in Everett, WA (NPI 1770521932).
Provider details
- NPI number
- 1770521932
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00044791 (WA)
Specialties & taxonomies
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
583 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 | 241 | $127 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 49 | $3 |
| Bacterial Colony Count, Urine87086 | 42 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 38 | $9 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 35 | $49 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 29 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 140 | 133 |
| Doxycycline Hyclate | 65 | 64 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 44 | 41 |
| Azithromycin | 41 | 37 |
| Cephalexin | 37 | 37 |
| Tramadol Hcl | 32 | 31 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 31 | 31 |
Practice location
Mailing address
Additional practice locations (1)
- 9709 3rd Ave NeSeattle, WA 98115-2062Phone: (206) 860-2222
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2023-09-14
- Certified
- 2023-09-14
Frequently asked questions
- What is Chieh Ma's NPI number?
- Chieh Ma's National Provider Identifier (NPI) is 1770521932, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chieh Ma's specialty?
- Chieh Ma is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Chieh Ma located?
- Chieh Ma's practice location on file with NPPES is 3901 Hoyt Ave, Everett, WA 98201-4918.
- What is Chieh Ma's phone number?
- The practice phone number listed in the NPPES registry for Chieh Ma is (425) 339-5420.
- Does Chieh Ma accept Medicare?
- Chieh Ma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chieh Ma's NPI active?
- Yes — Chieh Ma's NPI (1770521932) is active in the NPPES registry as of the last update on 2023-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.