Active NPI 1770521932 Individual Practitioner Male Practitioner

Dr. Chieh C Ma , MD

Internal Medicine • Everett, WA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Chieh Ma, MD is a certified Internal Medicine practicing in Everett, WA. With approximately 24 years of clinical experience since graduating from Medical College Of Wisconsin in 2002, Dr. Ma delivers high-quality medical care to the local community at 3927 RUCKER AVE.

Dr. Ma is affiliated with Optum Care Washington Pllc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, manual urinalysis test with examination using microscope, automated, bacterial colony count, urine. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3927 Rucker Ave

Everett, WA 982014833

Telephone 4253395422

Associated Practice Facility / Clinic

🏢 Optum Care Washington Pllc Facility NPI 1154318103

Medicare Profile & Education

Medical School

Medical College Of Wisconsin

Graduation Year

2002

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Everett, WA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

24 Yrs +3.7 yrs vs City Avg

City Avg: 20.3 Yrs

State Avg: 23.4 Yrs

Regional Practice Density

175 Specialists

Practicing in Everett, WA (3169 Statewide)

Telehealth Adoption Rate

12.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

62.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ma (24 Years) 24 Yrs

Everett Specialty Average (20.3 Years) 20.3 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	241	216	$349.66	$126.72
81001 Manual urinalysis test with examination using microscope, automated	49	43	$7.25	$3.11
87086 Bacterial colony count, urine	42	35	$18.25	$7.91
36415 Insertion of needle into vein for collection of blood sample	38	37	$18.00	$8.65
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	35	34	$138.15	$49.22
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	29	29	$470.03	$165.05
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	25	25	$14.50	$6.34
99213 Established patient office or other outpatient visit, typically 15 minutes	24	23	$242.10	$90.74
80053 Blood test, comprehensive group of blood chemicals	23	23	$22.25	$10.35
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	21	18	$19.50	$8.48
84484 Troponin (protein) analysis, quantitative	16	16	$26.25	$12.22
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	15	$473.65	$181.86
87077 Bacterial culture for aerobic isolates	14	11	$18.25	$7.92
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	11	11	$25.00	$6.38

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	230	214	$308.72	$126.98
36415 Insertion of needle into vein for collection of blood sample	39	36	$14.30	$7.87
81001 Manual urinalysis test with examination using microscope, automated	36	35	$7.25	$3.11
87086 Bacterial colony count, urine	32	31	$18.25	$7.91
99213 Established patient office or other outpatient visit, typically 15 minutes	30	30	$217.37	$92.48
80053 Blood test, comprehensive group of blood chemicals	28	28	$22.25	$9.98
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	28	28	$14.50	$6.11
U0002 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc	24	23	$125.50	$50.28
87635 Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen	21	21	$128.30	$50.28
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$450.50	$170.45
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	20	19	$19.50	$8.48
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	16	16	$431.25	$158.50
81003 Automated urinalysis test	16	16	$5.25	$2.08
84484 Troponin (protein) analysis, quantitative	14	14	$26.25	$11.35
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	14	14	$61.75	$14.42
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	13	13	$25.00	$6.04
71046 X-ray of chest, 2 views	13	13	$94.25	$34.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	153	147	$302.24	$124.91
U0002 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc	39	39	$125.50	$48.06
81001 Manual urinalysis test with examination using microscope, automated	32	30	$7.25	$3.05
36415 Insertion of needle into vein for collection of blood sample	31	31	$7.25	$2.97
G0008 Administration of influenza virus vaccine	29	29	$63.25	$29.92
99213 Established patient office or other outpatient visit, typically 15 minutes	28	27	$213.75	$91.58
90682 Influenza vaccine, quadrivalent derived from recombinant dna	26	26	$147.00	$68.54
87086 Bacterial colony count, urine	25	24	$18.25	$7.70
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	23	23	$14.50	$6.39
80053 Blood test, comprehensive group of blood chemicals	19	19	$22.25	$10.43
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	19	19	$420.50	$183.52
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	18	16	$19.50	$8.15
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	18	18	$61.25	$13.72
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$437.25	$167.97
71046 X-ray of chest, 2 views	15	13	$79.17	$30.50
84484 Troponin (protein) analysis, quantitative	14	14	$26.25	$12.33
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	12	12	$25.00	$6.40

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
0011A Adm sarscov2 100mcg/0.5ml1st	376	376	$19.15	$19.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	127	121	$282.75	$128.70
0012A Adm sarscov2 100mcg/0.5ml2nd	79	79	$38.24	$37.67
99213 Established patient office or other outpatient visit, typically 15 minutes	67	66	$195.75	$89.45
0003A Adm sarscov2 30mcg/0.3ml 3rd	44	44	$40.00	$40.42
U0002 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc	41	40	$113.72	$48.81
36415 Insertion of needle into vein for collection of blood sample	34	32	$7.25	$2.91
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	20	20	$14.50	$6.47
81001 Manual urinalysis test with examination using microscope, automated	20	19	$7.25	$3.17
71046 X-ray of chest, 2 views	20	20	$89.50	$34.65
87086 Bacterial colony count, urine	18	17	$18.25	$8.07
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	17	17	$26.25	$6.68
80053 Blood test, comprehensive group of blood chemicals	15	15	$22.25	$9.86
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	15	$379.75	$183.86
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$282.25	$113.96
84484 Troponin (protein) analysis, quantitative	12	12	$26.25	$12.47
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	11	11	$19.50	$8.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	169	165	$276.00	$107.07
J1885 Injection, ketorolac tromethamine, per 15 mg	32	13	$3.00	$0.60
81001 Manual urinalysis test with examination using microscope, automated	29	29	$7.25	$2.94
36415 Insertion of needle into vein for collection of blood sample	28	27	$7.25	$2.99
99213 Established patient office or other outpatient visit, typically 15 minutes	28	28	$187.00	$76.70
87086 Bacterial colony count, urine	22	22	$18.25	$7.31
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	19	19	$14.50	$6.45
80053 Blood test, comprehensive group of blood chemicals	17	17	$22.25	$10.51
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	15	15	$63.25	$14.32
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	13	13	$19.50	$7.95
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$276.50	$110.05
U0002 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc	12	12	$102.75	$47.03
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	11	11	$24.25	$8.79
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$421.25	$167.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	239	223	$266.75	$106.44
81001 Manual urinalysis test with examination using microscope, automated	34	33	$7.25	$3.45
36415 Insertion of needle into vein for collection of blood sample	32	31	$7.25	$2.87
87086 Bacterial colony count, urine	28	27	$18.25	$8.79
71046 X-ray of chest, 2 views	22	22	$72.78	$31.72
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	22	21	$19.50	$8.99
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	21	20	$14.50	$6.78
80053 Blood test, comprehensive group of blood chemicals	20	19	$22.25	$11.04
90682 Influenza vaccine, quadrivalent derived from recombinant dna	20	20	$91.25	$54.89
G0008 Administration of influenza virus vaccine	20	20	$63.25	$16.68
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	19	19	$407.50	$166.75
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	18	18	$24.25	$8.44
99213 Established patient office or other outpatient visit, typically 15 minutes	16	16	$181.25	$75.42
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$267.25	$109.92
87088 Bacterial urine culture	12	12	$17.25	$8.81
84484 Troponin (protein) analysis, quantitative	11	11	$22.00	$12.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	283	269	$266.54	$104.27
81001 Manual urinalysis test with examination using microscope, automated	44	41	$7.23	$3.84
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	43	43	$407.50	$165.05
87086 Bacterial colony count, urine	34	34	$18.22	$9.76
71046 X-ray of chest, 2 views	28	28	$68.34	$29.05
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	27	26	$19.48	$10.46
36415 Insertion of needle into vein for collection of blood sample	22	22	$7.25	$2.69
G0008 Administration of influenza virus vaccine	17	17	$55.00	$20.58
90653 Vaccine for influenza for injection into muscle	16	16	$90.75	$46.88
99213 Established patient office or other outpatient visit, typically 15 minutes	16	16	$181.03	$68.67
93005 Routine electrocardiogram (ecg) using at least 12 leads with tracing	15	14	$23.55	$8.45
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	14	14	$14.50	$6.78
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	14	12	$60.93	$20.66
87088 Bacterial urine culture	14	14	$15.48	$9.79
80053 Blood test, comprehensive group of blood chemicals	14	14	$19.89	$11.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	155	150	$255.73	$101.86
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	126	103	$48.15	$20.15
99213 Established patient office or other outpatient visit, typically 15 minutes	112	101	$171.03	$71.49
36415 Insertion of needle into vein for collection of blood sample	78	66	$7.24	$2.79
85610 Blood test, clotting time	67	25	$9.43	$5.28
80053 Blood test, comprehensive group of blood chemicals	35	35	$20.01	$9.01
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test	28	28	$15.25	$8.69
80061 Blood test, lipids (cholesterol and triglycerides)	27	27	$37.84	$14.45
84443 Blood test, thyroid stimulating hormone (TSH)	20	19	$39.30	$21.38
81001 Manual urinalysis test with examination using microscope, automated	17	16	$7.50	$4.26
71020 X-ray of chest, 2 views, front and side	15	15	$67.25	$22.50
83036 Hemoglobin A1C level	13	13	$22.85	$13.05
87086 Bacterial colony count, urine	12	12	$18.79	$10.85

Medical Specialties & State Licenses

CMS Verified: 2026-06-17

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License WA MD00044791

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

8429524 (WA)

Medicaid State Provider ID

1018516 (WA)

Hospital & Practice Group Affiliations

Optum Care Washington Pllc

1330 Rockefeller Ave, Everett, WA 982011684

Phone: 4252590966

Optum Care Washington Pllc

4410 106th St Sw, Mukilteo, WA 982754700

Phone: 4254936000

Optum Care Washington Pllc

2901 174th St Ne, Marysville, WA 982714743

Phone: 3604541900

Optum Care Washington Pllc

3927 Rucker Ave, Everett, WA 982014833

Phone: 4252590966

Optum Care Washington Pllc

1818 121st St Se, Everett, WA 982085985

Phone: 4253573300

Optum Care Washington Pllc

3901 Hoyt Ave, Everett, WA 982014918

Phone: 4253395442

Optum Care Washington Pllc

4420 76th St Ne, Marysville, WA 982703726

Phone: 3606517490

Optum Care Washington Pllc

401 2nd St, Snohomish, WA 982903008

Phone: 3605688600

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Dr. Raynald Im , MD

Family Medicine

NPI 1003136979

Doctor of Medicine (M.D.)

Dr. Kurt Duffens , MD

Internal Medicine

NPI 1013003045

Doctor of Medicine (M.D.)

Mary Mitchell , PA

Physician Assistant - Medical

NPI 1013990860

Physician Assistant

Dr. Paula Ruedebusch , FNP-BC, DNP

Nurse Practitioner

NPI 1033342050

Family Nurse Practitioner (Board Certified), Doctor of Nursing Practice

Fantahun Tedla , PA-C

Physician Assistant

NPI 1033548144

Physician Assistant (Certified)

Dr. Leslie Greene , MD

Family Medicine

NPI 1043478993

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events

📍

Updated Practice Location June 17, 2026

Registered at 3927 RUCKER AVE, EVERETT, WA 982014833 (Tel: 4253395422)

📍

Updated Business Mailing Address June 17, 2026

Registered at 7600 EVERGREEN WAY, EVERETT, WA 982036421 (Tel: 2068605414)

✅

NPI Profile Active December 13, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location December 13, 2012

Registered at 3901 HOYT AVE, EVERETT, WA 982014918 (Tel: 4253395420)

📍

Updated Business Mailing Address December 13, 2012

Registered at PO BOX 5127, EVERETT, WA 982065127

👤

Provider Name / Credentials Updated December 13, 2012

Recorded as CHIEH MA, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 13, 2012

Internal Medicine (License #MD00044791 in WA)

🟢

Initial NPI Registration & Enumeration June 02, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews

No patient reviews submitted yet for Dr. Chieh Ma. Be the first to share your experience!

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1770521932

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 02, 2006

Last Update: June 17, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

7600 Evergreen Way

Everett, WA 982036421

Phone: 2068605414

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.