Active NPI 1346493616 Individual Practitioner Female Practitioner

Diane Cecile Seim , PA-C

Physician Assistant • Seattle, WA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Diane Seim, PA-C is a certified Physician Assistant practicing in Seattle, WA. With approximately 18 years of clinical experience since completing medical education in 2008, Diane Seim delivers high-quality medical care to the local community at 1959 NE PACIFIC STREET.

Diane Seim is affiliated with The Association Of University Physicians and accepts Medicare assignment.

Frequently performed procedures and clinical services include fluoroscopic guidance for insertion, replacement or removal of central venous access device, moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first, ultrasonic guidance for blood vessel access. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1959 Ne Pacific Street

Seattle, WA 98195

Telephone 2065435972

Associated Practice Facility / Clinic

🏢 University Of Washington Medical Center Facility NPI 1881820462

Medicare Profile & Education

Medical School

Other

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Seattle, WA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs +7.7 yrs vs City Avg

City Avg: 10.3 Yrs

State Avg: 12.1 Yrs

Regional Practice Density

833 Specialists

Practicing in Seattle, WA (3774 Statewide)

Telehealth Adoption Rate

18.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

70.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Seim (18 Years) 18 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
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	78	76	$55.31	$16.37
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	73	72	$37.99	$11.13
76937 Ultrasonic guidance for blood vessel access	73	72	$43.22	$12.65
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	38	36	$796.05	$238.09
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	28	28	$1021.65	$307.25
36589 Removal of central venous catheter for infusion	22	20	$423.08	$124.76
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)	12	12	$261.18	$76.68

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	73	69	$57.60	$16.07
76937 Ultrasonic guidance for blood vessel access	72	68	$44.00	$12.65
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	64	61	$37.39	$11.16
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	34	34	$1057.72	$301.23
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	31	29	$820.25	$232.42
36589 Removal of central venous catheter for infusion	22	22	$437.69	$124.00
36590 Removal of peripheral venous catheter for infusion	15	14	$589.39	$157.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	60	57	$59.91	$16.70
76937 Ultrasonic guidance for blood vessel access	59	56	$44.39	$12.40
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	48	46	$35.75	$11.33
36589 Removal of central venous catheter for infusion	38	36	$447.35	$121.75
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	32	29	$837.33	$235.03
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	18	17	$1098.81	$296.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
76937 Ultrasonic guidance for blood vessel access	74	74	$44.22	$12.57
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	73	73	$58.30	$16.93
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	66	65	$34.12	$11.38
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	43	43	$1062.97	$307.37
36589 Removal of central venous catheter for infusion	31	30	$436.32	$128.53
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	28	28	$824.13	$240.15
36590 Removal of peripheral venous catheter for infusion	19	19	$603.38	$167.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	71	69	$57.80	$17.08
76937 Ultrasonic guidance for blood vessel access	68	67	$44.70	$13.21
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	57	56	$30.82	$11.28
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	38	37	$822.45	$246.14
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	27	27	$1061.70	$318.52
36589 Removal of central venous catheter for infusion	22	20	$431.85	$124.66
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	15	15	$28.32	$10.91
36590 Removal of peripheral venous catheter for infusion	12	12	$600.05	$166.04

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
76937 Ultrasonic guidance for blood vessel access	69	68	$44.57	$13.16
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	68	66	$57.63	$17.01
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	55	54	$27.20	$11.24
36589 Removal of central venous catheter for infusion	36	36	$431.18	$125.23
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	33	32	$823.72	$243.77
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	31	31	$1063.27	$314.25
76937 Ultrasonic guidance for blood vessel access	15	15	$44.70	$13.16
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	15	15	$57.80	$17.01
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	15	15	$27.09	$11.24
36590 Removal of peripheral venous catheter for infusion	13	13	$599.08	$164.05
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	11	11	$1062.68	$314.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	91	91	$58.40	$16.61
76937 Ultrasonic guidance for blood vessel access	86	86	$44.70	$12.83
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	63	63	$27.31	$11.04
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	42	42	$828.69	$237.15
36589 Removal of central venous catheter for infusion	42	41	$431.45	$125.52
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	39	39	$1071.16	$310.94
36590 Removal of peripheral venous catheter for infusion	15	15	$601.92	$147.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	67	67	$58.90	$16.64
76937 Ultrasonic guidance for blood vessel access	64	64	$44.70	$12.62
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	45	45	$27.00	$10.70
36589 Removal of central venous catheter for infusion	36	33	$433.56	$122.09
36558 Insertion of tunneled central venous tube for infusion (5 years or older)	33	33	$846.75	$236.80
99152 Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes	30	29	$27.00	$10.89
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	29	29	$1104.11	$297.46
76937 Ultrasonic guidance for blood vessel access	22	21	$44.70	$12.78
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	22	21	$58.90	$16.84
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	16	16	$1116.58	$305.58
36590 Removal of peripheral venous catheter for infusion	12	12	$633.33	$172.06

Medical Specialties & State Licenses

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License WA PA60053094

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

The Association Of University Physicians

1701 Columbia Rd, Seattle, WA 981950001

Phone: 2065983100

The Association Of University Physicians

1959 Ne Pacific St, Seattle, WA 981950001

Phone: 2065984333

Practice Associates & Co-Workers

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

40 Associated Practitioners

Sarah Church , RN

Registered Nurse

NPI 1003423443

Registered Nurse

Keelin Hurtt

Dentist

NPI 1003769530

Dr. Tiara Dillworth , PhD

Psychologist - Rehabilitation

NPI 1063841641

Doctor of Philosophy (Ph.D.)

Dr. Julianna Sabo , MD

Internal Medicine - Rheumatology

NPI 1063933281

Doctor of Medicine (M.D.)

Aaron Nguyen

Student in an Organized Health Care Education/Training Program

NPI 1083397053

Dr. Kimberly Lu , MD

Internal Medicine - Pulmonary Disease

NPI 1093370660

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active October 11, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location October 11, 2012

Registered at 1959 NE PACIFIC STREET, SEATTLE, WA 98195 (Tel: 2065435972)

📍

Updated Business Mailing Address October 11, 2012

Registered at 1200 N 48TH ST, SEATTLE, WA 981036660 (Tel: 2062652999)

👤

Provider Name / Credentials Updated October 11, 2012

Recorded as DIANE SEIM, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 11, 2012

Physician Assistant (License #PA60053094 in WA)

🟢

Initial NPI Registration & Enumeration October 29, 2008

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: 1346493616

Entity Type:

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

Enumeration Date: October 29, 2008

Last Update: October 11, 2012

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

1200 N 48th St

Seattle, WA 981036660

Phone: 2062652999

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.