Active NPI 1184831869 Individual Practitioner Male Practitioner

Dr. Christopher M Chambers , MD, PhD

Surgery - Vascular Surgery • Grand Rapids, MI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Christopher Chambers, MD, PhD is a certified Surgery - Vascular Surgery practicing in Grand Rapids, MI. With approximately 24 years of clinical experience since graduating from University Of South Florida College Of Medicine in 2002, Dr. Chambers delivers high-quality medical care to the local community at 275 MICHIGAN ST NE.

Dr. Chambers maintains professional affiliations with Fairview Heights Medical Group Sc, Spectrum Health Primary Care Partners and accepts Medicare assignment.

Frequently performed procedures and clinical services include ultrasound study of arm and leg arteries, ultrasound of both sides of head and neck blood flow, 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

275 Michigan St Ne

Grand Rapids, MI 495032531

Telephone 6162678700

Fax 6162678247

Associated Practice Facility / Clinic

🏢 Spectrum Health Primary Care Partners Facility NPI 1114779022

Medicare Profile & Education

Medical School

University Of South Florida College Of Medicine

Graduation Year

2002

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery - Vascular Surgery in Grand Rapids, MI

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

24 Yrs +1.2 yrs vs City Avg

City Avg: 22.8 Yrs

State Avg: 28.3 Yrs

Regional Practice Density

24 Specialists

Practicing in Grand Rapids, MI (208 Statewide)

Telehealth Adoption Rate

20.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Chambers (24 Years) 24 Yrs

Grand Rapids Specialty Average (22.8 Years) 22.8 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
93922 Ultrasound study of arm and leg arteries	124	116	$305.51	$72.04
93880 Ultrasound of both sides of head and neck blood flow	73	72	$649.16	$176.16
99213 Established patient office or other outpatient visit, typically 15 minutes	57	54	$157.00	$89.73
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	42	38	$228.00	$127.08
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	38	38	$585.00	$163.17
93923 Complete ultrasound study of arm and leg arteries	36	36	$489.00	$120.58
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	23	18	$154.57	$80.07
93926 Ultrasound of one leg arteries or artery grafts	20	16	$465.05	$118.49
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	17	17	$1036.00	$249.04
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	16	$87.35	$50.42
99221 Initial hospital inpatient care per day, typically 30 minutes	16	16	$219.25	$84.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$230.00	$111.29
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	15	15	$291.20	$132.95
75710 Radiological supervision and interpretation of imaging of artery of one arm or leg	11	11	$204.00	$83.92
93925 Ultrasound of leg arteries or artery grafts	11	11	$669.73	$175.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93922 Ultrasound study of arm and leg arteries	116	107	$301.06	$71.30
99213 Established patient office or other outpatient visit, typically 15 minutes	76	70	$155.00	$85.25
93880 Ultrasound of both sides of head and neck blood flow	57	56	$654.00	$176.47
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	38	37	$565.00	$160.10
93923 Complete ultrasound study of arm and leg arteries	31	31	$458.68	$117.40
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	29	29	$228.00	$108.82
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	25	22	$226.00	$123.82
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	20	19	$1001.00	$251.16
93926 Ultrasound of one leg arteries or artery grafts	15	12	$443.00	$112.89
93922 Ultrasound study of arm and leg arteries	15	15	$39.00	$12.12
99231 Follow-up hospital inpatient care per day, typically 15 minutes	14	11	$86.00	$49.08
99221 Initial hospital inpatient care per day, typically 30 minutes	14	14	$217.00	$82.06
76706 Ultrasound scan of abdominal aorta	13	13	$211.00	$101.33
76937 Ultrasonic guidance for blood vessel access	12	12	$37.00	$13.33
93925 Ultrasound of leg arteries or artery grafts	12	12	$768.00	$225.73
93882 Ultrasound of one side of head and neck blood flow	11	11	$419.00	$114.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93922 Ultrasound study of arm and leg arteries	117	112	$294.18	$75.13
99213 Established patient office or other outpatient visit, typically 15 minutes	86	74	$152.00	$86.38
93880 Ultrasound of both sides of head and neck blood flow	60	58	$634.00	$184.23
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	40	37	$548.00	$170.97
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	36	34	$222.00	$122.55
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	29	29	$224.00	$106.12
93922 Ultrasound study of arm and leg arteries	15	15	$37.00	$12.29
93923 Complete ultrasound study of arm and leg arteries	12	12	$458.00	$123.31
76937 Ultrasonic guidance for blood vessel access	12	12	$35.00	$13.63

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93922 Ultrasound study of arm and leg arteries	143	136	$286.17	$74.62
99213 Established patient office or other outpatient visit, typically 15 minutes	74	71	$151.07	$88.71
93880 Ultrasound of both sides of head and neck blood flow	60	60	$607.50	$184.05
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	51	50	$534.80	$173.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	43	41	$220.05	$127.06
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	28	28	$222.57	$109.99
93922 Ultrasound study of arm and leg arteries	22	22	$35.50	$12.74
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	18	18	$337.00	$164.61
93926 Ultrasound of one leg arteries or artery grafts	17	16	$443.29	$123.92
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	16	16	$944.44	$265.20
93923 Complete ultrasound study of arm and leg arteries	15	15	$446.20	$125.69
93925 Ultrasound of leg arteries or artery grafts	14	14	$679.14	$223.65
93882 Ultrasound of one side of head and neck blood flow	13	13	$395.23	$124.00
76937 Ultrasonic guidance for blood vessel access	12	11	$33.58	$13.83
75710 Radiological supervision and interpretation of imaging of artery of one arm or leg	12	12	$186.50	$84.37

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93922 Ultrasound study of arm and leg arteries	149	142	$282.24	$74.98
99213 Established patient office or other outpatient visit, typically 15 minutes	99	93	$147.76	$73.32
93880 Ultrasound of both sides of head and neck blood flow	64	64	$591.31	$184.59
93978 Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts	52	52	$527.46	$175.76
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	39	39	$218.36	$100.44
93923 Complete ultrasound study of arm and leg arteries	26	26	$424.92	$118.45
93926 Ultrasound of one leg arteries or artery grafts	22	22	$436.82	$122.45
93990 Ultrasound of dialysis access	22	21	$489.73	$129.00
75710 Radiological supervision and interpretation of imaging of artery of one arm or leg	21	19	$184.57	$87.77
76937 Ultrasonic guidance for blood vessel access	20	19	$32.50	$14.66
93922 Ultrasound study of arm and leg arteries	18	17	$34.72	$12.90
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	12	$217.33	$107.40
99221 Initial hospital inpatient care per day, typically 30 minutes	12	12	$207.33	$102.83
93882 Ultrasound of one side of head and neck blood flow	11	11	$390.91	$123.53
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$334.09	$162.73
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow	11	11	$930.91	$265.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	31	29	$144.45	$72.21
93922 Ultrasound study of arm and leg arteries	29	27	$277.17	$78.03
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	16	16	$213.00	$105.53
93880 Ultrasound of both sides of head and neck blood flow	12	12	$588.75	$191.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
93922 Ultrasound study of arm and leg arteries	35	34	$272.00	$72.73
99213 Established patient office or other outpatient visit, typically 15 minutes	19	18	$142.00	$70.16
93880 Ultrasound of both sides of head and neck blood flow	17	17	$580.00	$191.75
93882 Ultrasound of one side of head and neck blood flow	11	11	$372.00	$123.23

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	42	37	$138.67	$67.60
93922 Ultrasound study of arm and leg arteries	34	32	$267.06	$75.30
93880 Ultrasound of both sides of head and neck blood flow	19	19	$570.16	$188.89
93990 Ultrasound of dialysis access	16	16	$456.63	$126.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	13	13	$202.62	$103.05

Medical Specialties & State Licenses

CMS Verified: 2025-09-22

Surgery - Vascular Surgery Primary Specialty

NUCC Taxonomy Code: 2086S0129X

State License MI 4301091284

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Surgery - Vascular Surgery

NUCC Taxonomy Code: 2086S0129X

State License IL 036158917

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Hospital & Practice Group Affiliations

Spectrum Health Primary Care Partners

4444 Kalamazoo Ave Se, Kentwood, MI 495084600

Phone: 6163915600

Spectrum Health Primary Care Partners

4069 Lake Dr Se, Grand Rapids, MI 495468816

Spectrum Health Primary Care Partners

275 Michigan St Ne, Grand Rapids, MI 495032531

Phone: 6162678700

Spectrum Health Primary Care Partners

8333 Felch St, Zeeland, MI 494642610

Phone: 6164948724

Spectrum Health Primary Care Partners

100 Michigan St Ne Rm, Grand Rapids, MI 495032560

Phone: 6162670115

Spectrum Health Primary Care Partners

588 E Lakewood Blvd Fl, Holland, MI 494242023

Spectrum Health Primary Care Partners

6105 Wilson Ave Sw Fl, Wyoming, MI 494189714

Phone: 6162678950

Spectrum Health Primary Care Partners

15100 Whittaker Way, Grand Haven, MI 494178696

Phone: 6167724644

Spectrum Health Primary Care Partners

1840 Wealthy St Se, Grand Rapids, MI 495062921

Phone: 6168855000

Spectrum Health Primary Care Partners

230 W Oak St, Fremont, MI 494121526

Spectrum Health Primary Care Partners

6105 Wilson Ave Sw, Wyoming, MI 494189714

Spectrum Health Primary Care Partners

15100 Whittaker Way, Grand Haven, MI 494178696

Phone: 6169356280

Spectrum Health Primary Care Partners

2249 Wealthy St Se, East Grand Rapids, MI 495063055

Phone: 6163914600

Spectrum Health Primary Care Partners

100 Michigan Ave Ne, Grand Rapids, MI 495032560

Fairview Heights Medical Group Sc

4600 Memorial Dr, Belleville, IL 622265359

Phone: 6182221020

Spectrum Health Primary Care Partners

6105 Wilson Ave Sw, Grandville, MI 494189714

Phone: 6164865299

Spectrum Health Primary Care Partners

1005 W Green St, Hastings, MI 490581712

Secondary Practice Locations

4600 Memorial Dr Ste 120

Belleville, IL 622265359

Phone: 6182221020

Practice Associates & Co-Workers

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

28 Associated Practitioners

Dr. Robert Cuff , MD

Surgery - Vascular Surgery

NPI 1003854415

Doctor of Medicine (M.D.)

Dr. Benjamin Talbot , MD

Surgery - Vascular Surgery

NPI 1013612738

Doctor of Medicine (M.D.)

Dr. Christina Supino , DO

Surgery - Vascular Surgery

NPI 1073192555

Doctor of Osteopathic Medicine (D.O.)

Dr. Shaminy Manoranjithan , MD

Surgery - Vascular Surgery

NPI 1083408041

Doctor of Medicine (M.D.)

Gary Bissonette , PA

Physician Assistant

NPI 1114966538

Physician Assistant

Dr. Seth Wolk , MD

Surgery - Vascular Surgery

NPI 1114969714

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 22, 2025

Surgery (License #4301091284 in MI)

📍

Updated Practice Location January 27, 2025

Registered at 275 MICHIGAN ST NE, GRAND RAPIDS, MI 495032531 (Tel: 6162678700)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 05, 2023

Surgery (License #036158917 in IL)

✅

NPI Profile Active April 12, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location April 12, 2012

Registered at 4069 LAKE DR SE, STE. 312, GRAND RAPIDS, MI 495468816 (Tel: 6162678700)

📍

Updated Business Mailing Address April 12, 2012

Registered at 100 MICHIGAN ST NE, MC 845, GRAND RAPIDS, MI 495032560

👤

Provider Name / Credentials Updated April 12, 2012

Recorded as CHRISTOPHER CHAMBERS, MD, PHD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) April 12, 2012

Surgery (License #4301091284 in MI)

🟢

Initial NPI Registration & Enumeration May 16, 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: 1184831869

Entity Type:

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

Enumeration Date: May 16, 2007

Last Update: September 22, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

100 Michigan St Ne, Mc 845

Grand Rapids, MI 495032560

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.