Active NPI 1780818443 Individual Practitioner Female Practitioner

Dr. Abigail K Alt , MD

Internal Medicine • Seattle, WA

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Abigail Alt, MD is a certified Internal Medicine practicing in Seattle, WA. With approximately 17 years of clinical experience since graduating from Drexel University College Of Medicine in 2009, Dr. Alt delivers high-quality medical care to the local community at 747 BROADWAY.

Dr. Alt maintains professional affiliations with Swedish Health Services, Solace Health Medical Group Inc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, hospital discharge day management, more than, hospital observation care. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

747 Broadway

Seattle, WA 981224379

Telephone 2063866000

Associated Practice Facility / Clinic

🏢 Swedish Health Services Facility NPI 1053362327

Medicare Profile & Education

Medical School

Drexel University College Of Medicine

Graduation Year

2009

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Seattle, WA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

17 Yrs -3.3 yrs vs City Avg

City Avg: 20.3 Yrs

State Avg: 23.4 Yrs

Regional Practice Density

839 Specialists

Practicing in Seattle, WA (3169 Statewide)

Telehealth Adoption Rate

26.1% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

60.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Alt (17 Years) 17 Yrs

Seattle 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
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	341	137	$291.00	$124.54
99239 Hospital discharge day management, more than 30 minutes	65	65	$333.00	$122.06
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	38	22	$205.00	$82.96

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	374	127	$275.00	$125.89
99239 Hospital discharge day management, more than 30 minutes	59	59	$315.00	$120.10
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	50	25	$194.00	$83.60

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	291	109	$275.00	$109.06
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	78	37	$194.00	$76.28
99239 Hospital discharge day management, more than 30 minutes	46	46	$315.00	$113.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	249	119	$275.00	$111.25
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	136	71	$194.00	$77.22
99239 Hospital discharge day management, more than 30 minutes	60	59	$315.00	$114.51
99220 Hospital observation care, typically 70 minutes	25	25	$467.00	$196.00
99231 Follow-up hospital inpatient care per day, typically 15 minutes	22	11	$109.00	$41.29
99226 Subsequent observation care, typically 35 minutes per day	19	13	$279.00	$111.62
99217 Hospital observation care on day of discharge	16	16	$184.00	$78.85
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	13	13	$508.00	$203.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	196	97	$273.00	$112.74
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	129	78	$192.00	$76.60
99239 Hospital discharge day management, more than 30 minutes	72	71	$313.00	$116.95
99231 Follow-up hospital inpatient care per day, typically 15 minutes	47	20	$108.00	$42.21
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	21	21	$504.00	$218.64
99226 Subsequent observation care, typically 35 minutes per day	19	14	$277.00	$114.18
99217 Hospital observation care on day of discharge	19	19	$183.00	$78.62
99220 Hospital observation care, typically 70 minutes	15	14	$463.00	$201.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	229	133	$270.00	$108.23
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	167	103	$190.00	$75.35
99239 Hospital discharge day management, more than 30 minutes	109	109	$309.00	$112.90
99231 Follow-up hospital inpatient care per day, typically 15 minutes	69	29	$106.00	$40.69
99217 Hospital observation care on day of discharge	17	17	$176.00	$77.77
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	15	14	$486.00	$215.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	168	93	$266.00	$108.28
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	159	87	$176.00	$75.69
99239 Hospital discharge day management, more than 30 minutes	85	85	$305.00	$111.05
99231 Follow-up hospital inpatient care per day, typically 15 minutes	69	30	$98.00	$40.29
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	34	34	$479.00	$207.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	179	107	$257.00	$105.89
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	149	78	$170.00	$71.55
99239 Hospital discharge day management, more than 30 minutes	88	86	$294.00	$107.69
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	56	56	$462.00	$200.34
99231 Follow-up hospital inpatient care per day, typically 15 minutes	35	25	$95.00	$40.18
99217 Hospital observation care on day of discharge	14	14	$168.00	$75.16
99220 Hospital observation care, typically 70 minutes	13	13	$425.00	$185.46

Medical Specialties & State Licenses

CMS Verified: 2026-02-03

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License WA 60302495

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.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

State License NY 264568

Hospital & Practice Group Affiliations

Solace Health Medical Group Inc

2590 Welton St, Denver, CO 802054268

Phone: 2012838515

Swedish Health Services

747 Broadway, Seattle, WA 981224379

Phone: 2063866000

Swedish Health Services

751 Ne Blakely Dr, Issaquah, WA 980296201

Swedish Health Services

500 17th Ave, Seattle, WA 981225711

Phone: 2063202000

Practice Associates & Co-Workers

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

40 Associated Practitioners

Adrian Joseph Nava

Student in an Organized Health Care Education/Training Program

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Dr. Jeffrey Strong , MD

Internal Medicine

NPI 1023028438

Doctor of Medicine (M.D.)

Dr. Nuria Perez-Reyes , MD

Pathology - Anatomic Pathology

NPI 1033170402

Doctor of Medicine (M.D.)

Dr. Howard Willson , MD

Emergency Medicine

NPI 1033175880

Doctor of Medicine (M.D.)

Dr. Saif Matti , DDS

Student in an Organized Health Care Education/Training Program

NPI 1033852272

Doctor of Dental Surgery

Dr. Kristin Tang , MD

Family Medicine

NPI 1053775015

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 February 03, 2026

Registered at 747 BROADWAY, SEATTLE, WA 981224379 (Tel: 2063866000)

📍

Updated Business Mailing Address February 03, 2026

Registered at 1037 NE 65TH ST # 81134, SEATTLE, WA 981156655

✅

NPI Profile Active May 01, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location May 01, 2013

Registered at 401 15TH AVE SE, PUYALLUP, WA 983723715 (Tel: 2536974000)

📍

Updated Business Mailing Address May 01, 2013

Registered at 1123 PACIFIC AVE, TACOMA, WA 984024303

👤

Provider Name / Credentials Updated May 01, 2013

Recorded as ABIGAIL ALT, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 01, 2013

Internal Medicine (License #264568 in NY)

🟢

Initial NPI Registration & Enumeration May 11, 2009

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: 1780818443

Entity Type:

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

Enumeration Date: May 11, 2009

Last Update: February 03, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1037 Ne 65th St # 81134

Seattle, WA 981156655

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.