Active NPI 1699882969 Individual Practitioner Male Practitioner

Gregory N Geissinger , PA-C

Physician Assistant • Marshfield, WI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Gregory Geissinger, PA-C is a certified Physician Assistant practicing in Marshfield, WI. With approximately 26 years of clinical experience since completing medical education in 2000, Gregory Geissinger delivers high-quality medical care to the local community at 1000 N OAK AVE.

Gregory Geissinger maintains professional affiliations with Aspirus Medical Group, Inc., Mchs Hospitals Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include follow-up hospital inpatient care per day, subsequent hospital care with moderate levelof medical decision making, if using time, at least, initial hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1000 N Oak Ave

Marshfield, WI 54449

Telephone 7153875297

Associated Practice Facility / Clinic

🏢 Marshfield Clinic Inc Facility NPI 1952347981

Medicare Profile & Education

Medical School

Other

Graduation Year

2000

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Marshfield, WI

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

26 Yrs +14.7 yrs vs City Avg

City Avg: 11.3 Yrs

State Avg: 14.1 Yrs

Regional Practice Density

60 Specialists

Practicing in Marshfield, WI (3517 Statewide)

Telehealth Adoption Rate

5.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

80.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Geissinger (26 Years) 26 Yrs

Marshfield Specialty Average (11.3 Years) 11.3 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2022)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	45	22	$159.60	$31.11

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	61	34	$155.45	$31.37
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	21	13	$281.70	$58.58
99221 Initial hospital inpatient care per day, typically 30 minutes	15	15	$500.35	$81.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	74	35	$150.31	$31.38
99221 Initial hospital inpatient care per day, typically 30 minutes	23	23	$401.83	$82.80
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	13	$110.71	$20.89

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	30	15	$143.63	$32.38
99221 Initial hospital inpatient care per day, typically 30 minutes	25	25	$373.57	$82.72
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	17	$100.33	$20.98
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	14	12	$259.84	$59.98

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	31	17	$137.74	$31.87
99221 Initial hospital inpatient care per day, typically 30 minutes	28	27	$355.96	$81.75
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	19	11	$252.63	$59.33

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	25	15	$244.14	$59.02
99231 Follow-up hospital inpatient care per day, typically 15 minutes	20	14	$132.13	$32.01
99221 Initial hospital inpatient care per day, typically 30 minutes	19	19	$342.19	$82.21

Medical Specialties & State Licenses

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License WI 1225

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

42996700 (WI)

Hospital & Practice Group Affiliations

Mchs Hospitals Inc

1000 N Oak Ave, Marshfield, WI 544495703

Mchs Hospitals Inc

1000 N Oak Ave, Marshfield, WI 544495703

Phone: 7153875511

Aspirus Medical Group, Inc.

425 Pine Ridge Blvd, Wausau, WI 544014124

Phone: 7158472070

Practice Associates & Co-Workers

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

3 Associated Practitioners

Hazel Neufeld , PA-C

Physician Assistant

NPI 1811004187

Physician Assistant (Certified)

Dr. Sanjay Rao , MD

Neurological Surgery

NPI 1831206192

Doctor of Medicine (M.D.)

Dr. John Neal , MD

Neurological Surgery

NPI 1932216298

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 July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 1000 N OAK AVE, MARSHFIELD, WI 54449 (Tel: 7153875297)

📍

Updated Business Mailing Address July 08, 2007

Registered at 1000 N OAK AVE, MARSHFIELD, WI 544495777

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as GREGORY GEISSINGER, PAC

🎓

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

Physician Assistant (License #1225 in WI)

🟢

Initial NPI Registration & Enumeration August 24, 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: 1699882969

Entity Type:

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

Enumeration Date: August 24, 2006

Last Update: November 17, 2022

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1000 N Oak Ave

Marshfield, WI 544495777

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.