Active NPI 1437116423 Individual Practitioner Male Practitioner

Dr. Walter Lawrence Groff , MD

Colon & Rectal Surgery • Summit, NJ

Professional Overview & Biography Verified Profile Summary

Dr. Walter Groff, MD is a registered healthcare professional specializing in Colon & Rectal Surgery in Summit, NJ. Practice services are available at 33 OVERLOOK RD under active NPI credentials.

Frequently performed procedures and clinical services include new patient outpatient office visit, removal of polyps or growths of large bowel using an endoscope with mechanical snare, diagnostic examination of the anus using an endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

33 Overlook Rd
Suite 412

Summit, NJ 079013570

Telephone 9095980220

Associated Practice Facility / Clinic

🏢 Gamma-Electron Radiation Oncology Associates Facility NPI 1346249174

Specialty Benchmarks & Practice Insights

Comparative analytics for Colon & Rectal Surgery in Summit, NJ

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 25.0 Yrs

State Avg: 24.7 Yrs

Regional Practice Density

2 Specialists

Practicing in Summit, NJ (101 Statewide)

Telehealth Adoption Rate

50.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

0.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2020)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99202 New patient office or other outpatient visit, typically 20 minutes	17	17	$86.26	$86.04

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99202 New patient office or other outpatient visit, typically 20 minutes	100	100	$86.46	$84.57
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	55	55	$516.79	$211.45
46600 Diagnostic examination of the anus using an endoscope	29	29	$112.49	$111.07
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	26	26	$401.64	$198.87
99201 New patient office or other outpatient visit, typically 10 minutes	24	24	$52.02	$51.58
45388 Destruction of polyp or growth of large bowel using a flexible endoscope	22	22	$1282.90	$303.43
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	16	16	$532.57	$163.39
99213 Established patient office or other outpatient visit, typically 15 minutes	16	16	$86.01	$78.41
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$121.39	$120.28
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	11	11	$53.41	$50.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99202 New patient office or other outpatient visit, typically 20 minutes	117	117	$85.07	$79.37
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	63	63	$503.17	$194.40
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	35	35	$362.63	$193.15
46600 Diagnostic examination of the anus using an endoscope	34	33	$104.79	$98.03
99201 New patient office or other outpatient visit, typically 10 minutes	31	31	$51.47	$45.42
45388 Destruction of polyp or growth of large bowel using a flexible endoscope	27	27	$398.26	$277.30
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	26	25	$50.88	$46.73
99213 Established patient office or other outpatient visit, typically 15 minutes	26	26	$82.73	$74.26
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	22	22	$519.24	$179.82
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$121.15	$113.45
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	12	12	$362.76	$196.26
45380 Biopsy of large bowel using an endoscope	11	11	$468.64	$142.61

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99202 New patient office or other outpatient visit, typically 20 minutes	133	133	$85.50	$80.24
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare	72	72	$542.17	$200.35
46600 Diagnostic examination of the anus using an endoscope	60	58	$105.06	$98.59
99201 New patient office or other outpatient visit, typically 10 minutes	43	43	$50.45	$47.59
99213 Established patient office or other outpatient visit, typically 15 minutes	33	31	$82.02	$77.83
45388 Destruction of polyp or growth of large bowel using a flexible endoscope	32	32	$682.91	$287.78
G0105 Colorectal cancer screening; colonoscopy on individual at high risk	32	32	$387.37	$198.26
45384 Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery	29	29	$550.57	$177.79
46221 Removal of external hemorrhoids by rubber banding	27	20	$317.21	$294.86
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	22	18	$51.80	$47.15
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	15	15	$121.24	$116.31
45380 Biopsy of large bowel using an endoscope	12	12	$638.88	$141.84

Medical Specialties & State Licenses

Colon & Rectal Surgery Primary Specialty

NUCC Taxonomy Code: 208C00000X

State License NJ 25MA03600900

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

Practice Associates & Co-Workers

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

40 Associated Practitioners

Elfie Wegner , RN P

Nurse Practitioner

NPI 1003993387

RNP

Dr. Chang Kweon , MD

Anesthesiology

NPI 1023078730

Doctor of Medicine (M.D.)

Dr. Elise Butkiewicz , MD

Family Medicine

NPI 1023196979

Doctor of Medicine (M.D.)

Dr. Jason Byers , MD

Anesthesiology

NPI 1033170394

Doctor of Medicine (M.D.)

Dr. Joseph Altongy , MD

Orthopaedic Surgery

NPI 1053367417

Doctor of Medicine (M.D.)

Beverly Pranzatelli , PT

Physical Therapist

NPI 1063430486

Physical Therapist

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 33 OVERLOOK RD, SUITE 412, SUMMIT, NJ 079013570 (Tel: 9095980220)

📍

Updated Business Mailing Address July 08, 2007

Registered at 67 BUXTON RD, CHATHAM, NJ 079281225 (Tel: 9736353614)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as WALTER GROFF, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Colon & Rectal Surgery (License #25MA03600900 in NJ)

🟢

Initial NPI Registration & Enumeration April 26, 2006

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: 1437116423

Entity Type:

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

Enumeration Date: April 26, 2006

Last Update: July 08, 2007

Sole Proprietor: No

Update or Correct Profile

Mailing Address

67 Buxton Rd

Chatham, NJ 079281225

Phone: 9736353614

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.