Active NPI 1497070486 Individual Practitioner Male Practitioner

Dr. Mackenzie Rainier Cook , MD

Surgery • Portland, OR

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Mackenzie Cook, MD is a certified Surgery practicing in Portland, OR. With approximately 16 years of clinical experience since graduating from Duke University School Of Medicine in 2010, Dr. Cook delivers high-quality medical care to the local community at 3181 SW SAM JACKSON PARK ROAD.

Dr. Cook is affiliated with University Professional Services and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, critical care, first, initial hospital care with straightforward or low-level medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3181 Sw Sam Jackson Park Road
Ohsu

Portland, OR 972392393

Telephone 5034945300

Fax 5034946519

Associated Practice Facility / Clinic

🏢 Oregon Health & Science University Facility NPI 1609824010

Medicare Profile & Education

Medical School

Duke University School Of Medicine

Graduation Year

2010

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Portland, OR

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

16 Yrs -4.9 yrs vs City Avg

City Avg: 20.9 Yrs

State Avg: 23.3 Yrs

Regional Practice Density

177 Specialists

Practicing in Portland, OR (555 Statewide)

Telehealth Adoption Rate

23.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

65.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Cook (16 Years) 16 Yrs

Portland Specialty Average (20.9 Years) 20.9 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	55	35	$329.91	$122.19
99291 Critical care, first 30-74 minutes	36	20	$775.61	$216.92
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	29	18	$218.86	$80.91
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	25	25	$362.44	$134.55
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	21	21	$489.00	$178.83
85390 Coagulation function screening test with interpretation and report	19	14	$101.00	$37.35
99238 Hospital discharge day management, 30 minutes or less	11	11	$222.18	$84.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	36	28	$183.67	$80.65
99291 Critical care, first 30-74 minutes	32	21	$693.06	$215.46
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	16	14	$270.00	$121.31
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	14	14	$329.79	$132.37
99238 Hospital discharge day management, 30 minutes or less	12	12	$197.25	$82.85
99221 Initial hospital inpatient care per day, typically 30 minutes	11	11	$237.64	$84.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	40	37	$176.00	$72.37
99221 Initial hospital inpatient care per day, typically 30 minutes	34	34	$247.56	$100.88
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	29	22	$252.00	$104.08
99231 Follow-up hospital inpatient care per day, typically 15 minutes	27	15	$96.00	$39.12
99291 Critical care, first 30-74 minutes	19	15	$695.11	$219.91
99238 Hospital discharge day management, 30 minutes or less	11	11	$177.73	$73.61

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99291 Critical care, first 30-74 minutes	81	47	$683.84	$222.87
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	48	39	$174.88	$73.26
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	41	34	$250.88	$105.33
99221 Initial hospital inpatient care per day, typically 30 minutes	31	31	$245.90	$102.08
99231 Follow-up hospital inpatient care per day, typically 15 minutes	26	15	$95.85	$39.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	51	33	$174.39	$75.23
99291 Critical care, first 30-74 minutes	51	27	$669.24	$228.89
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	47	37	$250.00	$108.19
85390 Coagulation function screening test with interpretation and report	43	27	$109.05	$39.03
99231 Follow-up hospital inpatient care per day, typically 15 minutes	37	23	$95.00	$40.78
99221 Initial hospital inpatient care per day, typically 30 minutes	34	33	$244.68	$105.19
99238 Hospital discharge day management, 30 minutes or less	18	18	$176.00	$75.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	77	44	$175.48	$73.49
99291 Critical care, first 30-74 minutes	55	31	$661.73	$223.96
99221 Initial hospital inpatient care per day, typically 30 minutes	43	43	$244.00	$102.11
99231 Follow-up hospital inpatient care per day, typically 15 minutes	36	32	$95.00	$39.72
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	32	26	$250.53	$105.05
99292 Critical care, each additional 30 minutes	29	11	$295.00	$112.30
85390 Coagulation function screening test with interpretation and report	18	15	$97.56	$38.33
85576 Platelet function test	17	14	$45.00	$18.76
99238 Hospital discharge day management, 30 minutes or less	16	16	$176.00	$74.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99291 Critical care, first 30-74 minutes	130	72	$659.75	$217.09
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	113	71	$174.90	$71.58
99221 Initial hospital inpatient care per day, typically 30 minutes	44	42	$244.00	$99.31
85390 Coagulation function screening test with interpretation and report	36	27	$54.00	$18.18
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	34	32	$251.00	$102.51
85576 Platelet function test	29	24	$45.00	$17.71
99238 Hospital discharge day management, 30 minutes or less	27	27	$175.41	$72.20
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	12	12	$329.00	$134.26

Medical Specialties & State Licenses

CMS Verified: 2026-07-08

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License WA 60642364

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Surgery - Trauma Surgery

NUCC Taxonomy Code: 2086S0127X

State License OR MD184572

Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.

Surgery

NUCC Taxonomy Code: 208600000X

State License OR MD184572

Surgery - Surgical Critical Care

NUCC Taxonomy Code: 2086S0102X

State License OR MD184572

A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Hospital & Practice Group Affiliations

University Professional Services

3181 Sw Sam Jackson Park Rd, Portland, OR 972393011

Phone: 5034948311

Secondary Practice Locations

1615 Delaware St

Longview, WA 986322367

Phone: 3605013500

Practice Associates & Co-Workers

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

26 Associated Practitioners

Kristy Aghayan , PA-C

Physician Assistant - Surgical

NPI 1083755607

Physician Assistant (Certified)

Dr. Mary Sorensen , MD

Surgery

NPI 1114127263

Doctor of Medicine (M.D.)

Dr. Laszlo Kiraly , MD

Surgery - Surgical Critical Care

NPI 1134324551

Doctor of Medicine (M.D.)

Dr. John Fletcher , MD

Surgery - Trauma Surgery

NPI 1134566037

Doctor of Medicine (M.D.)

Nicolas Hall , ACNPC-AG

Nurse Practitioner - Acute Care

NPI 1144844184

ACNPCAG

Joshua Bowley , PA-C

Physician Assistant - Surgical

NPI 1144980103

Physician Assistant (Certified)

Career & Practice History Timeline

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

12 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2026

Surgery (License #MD184572 in OR)

✅

NPI Profile Active August 29, 2017

NPI status registered as active in NPPES database

📍

Updated Business Mailing Address August 29, 2017

Registered at 3181 SW SAM JACKSON PARK RD, MAIL CODE: L223, PORTLAND, OR 97239 (Tel: (860) 463-5727)

📍

Updated Practice Location August 29, 2017

Registered at 3181 SW SAM JACKSON PARK ROAD, OHSU, PORTLAND, OR 972392393 (Tel: 5034945300)

👤

Provider Name / Credentials Updated August 29, 2017

Recorded as MACKENZIE COOK, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) August 29, 2017

Surgery (License #MD184572 in OR)

✅

NPI Profile Active April 01, 2010

NPI status registered as active in NPPES database

📍

Updated Practice Location April 01, 2010

Registered at 3181 SW SAM JACKSON PARK ROAD, OHSU, PORTLAND, OR 972392393 (Tel: 5034948211)

📍

Updated Business Mailing Address April 01, 2010

Registered at 100 REMINGTON CIR, DURHAM, NC 277052393 (Tel: 8604635727)

👤

Provider Name / Credentials Updated April 01, 2010

Recorded as MACKENZIE COOK, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 01, 2010

Student in an Organized Health Care Education/Training Program

🟢

Initial NPI Registration & Enumeration April 01, 2010

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: 1497070486

Entity Type:

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

Enumeration Date: April 01, 2010

Last Update: July 08, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

3181 Sw Sam Jackson Park Rd, Mail Code: L223

Portland, OR 97239

Phone: 8604635727

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.