Active NPI 1144414145 Individual Practitioner Male Practitioner

Mark Lewis Anstadt , ARNP

Nurse Practitioner • Seattle, WA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Mark Anstadt, ARNP is a certified Nurse Practitioner practicing in Seattle, WA. With approximately 19 years of clinical experience since graduating from University Of Washington School Of Medicine in 2007, Mark Anstadt delivers high-quality medical care to the local community at 904 7TH AVE.

Mark Anstadt is affiliated with The Polyclinic Pllc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include blood test, lipids (cholesterol and triglycerides), insertion of needle into vein for collection of blood sample, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

904 7th Ave

Seattle, WA 98104

Telephone 2068605603

Fax 2067207459

Associated Practice Facility / Clinic

🏢 Kelley-Ross & Assoc Inc Facility NPI 1669517025

Medicare Profile & Education

Medical School

University Of Washington School Of Medicine

Graduation Year

2007

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner in Seattle, WA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

19 Yrs +8.7 yrs vs City Avg

City Avg: 10.3 Yrs

State Avg: 11.0 Yrs

Regional Practice Density

574 Specialists

Practicing in Seattle, WA (2339 Statewide)

Telehealth Adoption Rate

28.6% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

66.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Anstadt (19 Years) 19 Yrs

Seattle Specialty Average (10.3 Years) 10.3 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
80061 Blood test, lipids (cholesterol and triglycerides)	173	85	$63.00	$13.00
36415 Insertion of needle into vein for collection of blood sample	164	81	$16.63	$8.57
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	155	90	$351.64	$119.38
86141 Measurement c-reactive protein for detection of infection or inflammation, high sensitivity	154	79	$36.00	$12.56
82947 Blood glucose (sugar) level	133	75	$11.46	$3.81
84460 Liver enzyme (sgpt), level	51	44	$15.00	$5.19
83036 Hemoglobin A1C level	44	34	$26.23	$9.52
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	41	34	$472.71	$167.45
84550 Uric acid level, blood	36	31	$14.00	$4.43
80053 Blood test, comprehensive group of blood chemicals	27	24	$34.00	$10.35
99213 Established patient office or other outpatient visit, typically 15 minutes	25	23	$246.20	$85.30
84450 Liver enzyme (sgot), level	22	21	$15.00	$5.08
82565 Blood creatinine level	19	19	$15.00	$5.02
82550 Creatine kinase (cardiac enzyme) level, total	17	14	$18.00	$6.38
84443 Blood test, thyroid stimulating hormone (TSH)	13	13	$55.00	$16.46
99451 Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes	11	11	$111.00	$31.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
80061 Blood test, lipids (cholesterol and triglycerides)	138	85	$63.00	$13.02
82947 Blood glucose (sugar) level	130	81	$16.00	$3.82
36415 Insertion of needle into vein for collection of blood sample	128	78	$15.00	$8.40
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	124	78	$313.00	$117.46
84460 Liver enzyme (sgpt), level	73	52	$15.00	$5.19
86141 Measurement c-reactive protein for detection of infection or inflammation, high sensitivity	70	51	$36.00	$12.51
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	48	36	$419.00	$158.62
83036 Hemoglobin A1C level	42	31	$31.00	$9.52
84450 Liver enzyme (sgot), level	24	20	$15.00	$5.08
82565 Blood creatinine level	23	22	$15.00	$5.02
84550 Uric acid level, blood	14	14	$14.00	$4.11
99213 Established patient office or other outpatient visit, typically 15 minutes	11	11	$212.00	$77.84

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	138	94	$313.00	$114.03
36415 Insertion of needle into vein for collection of blood sample	99	61	$15.00	$2.95
82947 Blood glucose (sugar) level	90	56	$16.00	$3.83
80061 Blood test, lipids (cholesterol and triglycerides)	81	56	$63.00	$13.01
84460 Liver enzyme (sgpt), level	46	38	$15.00	$5.10
86141 Measurement c-reactive protein for detection of infection or inflammation, high sensitivity	37	28	$36.00	$12.77
84450 Liver enzyme (sgot), level	35	29	$15.00	$5.10
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	34	27	$419.00	$166.43
83036 Hemoglobin A1C level	28	20	$31.00	$9.58
82565 Blood creatinine level	27	24	$15.00	$5.04
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	25	25	$600.00	$206.39
82570 Creatinine level to test for kidney function or muscle injury	15	14	$16.00	$5.12
82043 Urine microalbumin (protein) level	15	14	$17.00	$5.71
84443 Blood test, thyroid stimulating hormone (TSH)	12	11	$55.00	$16.62

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	49	33	$313.00	$122.42
36415 Insertion of needle into vein for collection of blood sample	45	35	$15.00	$3.00
82947 Blood glucose (sugar) level	29	24	$16.00	$3.93
80061 Blood test, lipids (cholesterol and triglycerides)	26	24	$63.00	$13.39
83036 Hemoglobin A1C level	18	16	$31.00	$9.71
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	17	15	$419.00	$170.20
84460 Liver enzyme (sgpt), level	15	14	$15.00	$5.30
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	14	14	$600.00	$207.46
86141 Measurement c-reactive protein for detection of infection or inflammation, high sensitivity	14	13	$36.00	$12.95
84450 Liver enzyme (sgot), level	14	13	$15.00	$5.18

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	90	55	$313.00	$102.26
36415 Insertion of needle into vein for collection of blood sample	61	38	$15.00	$2.98
99213 Established patient office or other outpatient visit, typically 15 minutes	44	37	$212.00	$70.84
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days	41	29	$197.00	$62.80
99453 Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment	30	29	$60.00	$18.79
80048 Blood test, basic group of blood chemicals (calcium, total)	23	15	$27.00	$8.39
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	20	19	$23.00	$7.73
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes	19	19	$153.00	$48.89
80053 Blood test, comprehensive group of blood chemicals	16	14	$34.00	$10.52
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	12	12	$325.00	$110.85
81001 Manual urinalysis test with examination using microscope, automated	11	11	$15.00	$3.02

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	150	97	$313.00	$99.82
99213 Established patient office or other outpatient visit, typically 15 minutes	113	96	$212.00	$68.08
36415 Insertion of needle into vein for collection of blood sample	97	65	$15.00	$2.92
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	44	42	$23.00	$8.46
80053 Blood test, comprehensive group of blood chemicals	32	32	$34.00	$11.51
84443 Blood test, thyroid stimulating hormone (TSH)	29	26	$55.00	$18.30
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	27	27	$325.00	$106.84
80048 Blood test, basic group of blood chemicals (calcium, total)	25	16	$27.00	$9.21
80061 Blood test, lipids (cholesterol and triglycerides)	25	23	$63.00	$14.58
81001 Manual urinalysis test with examination using microscope, automated	21	21	$15.00	$3.45
83036 Hemoglobin A1C level	18	12	$31.00	$10.57
82043 Urine microalbumin (protein) level	15	15	$17.00	$6.29
82570 Creatinine level to test for kidney function or muscle injury	15	15	$16.00	$5.63
93000 Routine ekg using at least 12 leads including interpretation and report	12	11	$77.00	$15.67
G0008 Administration of influenza virus vaccine	11	11	$65.00	$18.23
90662 Influenza vaccine split virus, preservative free	11	11	$86.00	$54.89

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	73	48	$313.00	$98.91
99213 Established patient office or other outpatient visit, typically 15 minutes	45	40	$212.00	$67.22
36415 Insertion of needle into vein for collection of blood sample	44	36	$15.00	$2.94
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	21	18	$23.00	$9.40
80053 Blood test, comprehensive group of blood chemicals	15	14	$32.67	$12.78
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$482.00	$150.33
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	11	11	$325.00	$107.76

Medical Specialties & State Licenses

CMS Verified: 2026-06-29

Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

State License WA AP30007837

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Hospital & Practice Group Affiliations

The Polyclinic Pllc

904 7th Ave, Seattle, WA 981041132

Phone: 2063091760

Practice Associates & Co-Workers

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

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Physician Assistant - Surgical

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Physician Assistant (Certified)

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Internal Medicine

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Doctor of Medicine (M.D.)

Dr. Kathleen Makielski , MD

Otolaryngology

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Dr. Xiangping Ren , MD

Physical Medicine & Rehabilitation - Pain Medicine

NPI 1023173846

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Business Mailing Address June 29, 2026

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

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) June 29, 2026

Nurse Practitioner (License #AP30007837 in WA)

📍

Updated Practice Location May 18, 2018

Registered at 904 7TH AVE, SEATTLE, WA 98104 (Tel: 2068605603)

✅

NPI Profile Active February 03, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location February 03, 2011

Registered at 2720 E MADISON ST, SEATTLE, WA 981124739 (Tel: 2067202315)

📍

Updated Business Mailing Address February 03, 2011

Registered at 2720 E MADISON ST, SEATTLE, WA 981124739 (Tel: 2067202315)

👤

Provider Name / Credentials Updated February 03, 2011

Recorded as MARK ANSTADT, ARNP

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 03, 2011

Nurse Practitioner (License #AP30007837 in WA)

🟢

Initial NPI Registration & Enumeration September 01, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1144414145

Entity Type:

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

Enumeration Date: September 01, 2007

Last Update: June 29, 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.