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PROHEALTH MEDICAL GROUP INC
NPI 1386897965
Family Medicine in Oconomowoc, WI

Active since October 28, 2008CLIA 52D2192613 · Waiver
820 SUMMIT AVE, OCONOMOWOC, WI 53066(262) 567-0223(262) 567-6380 Get Directions Write a Review

NPPES record last updated: May 23, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 23, 2022, Sep 8, 2021 (2 updates tracked since 2021).

About Prohealth Medical Group Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PROHEALTH MEDICAL GROUP INC (NPI 1386897965) is a healthcare organization registered as a family medicine in Oconomowoc, Wisconsin and active in the NPI registry since October 2008. The organization holds a CLIA Waiver certificate valid through September 10, 2028 and lists Peter T Geiss, President, as its authorized official.

NPPES Registry Identity

NPI1386897965
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NamePROHEALTH MEDICAL GROUP INC
Location Address820 SUMMIT AVEOconomowoc, WI 53066-3900
Mailing AddressN17w24100 Riverwood Dr, Suite 150Waukesha, WI 53188-1177 · (262) 928-4100 · Fax (262) 928-5835
Phone(262) 567-0223
Fax(262) 567-6380
Organization SubpartYes
Authorized OfficialPeter T GeissPresident · (262) 928-8669
Enumeration DateOctober 28, 2008
Last NPPES UpdateMay 23, 20222 updates tracked since enumeration
NPPES CertifiedMay 23, 2022
✔ NPI 1386897965 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
820 SUMMIT AVE, Oconomowoc, WI 53066
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Prohealth Medical Group Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

527

Medicare enrollment records show 527 clinicians reassign Medicare billing to Prohealth Medical Group Inc, which bills Medicare for the services they deliver. Of these, 2 practice at this address and 43 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 41

Nurse Practitioner174
Family Practice83
Clinical Social Worker26
Diagnostic Radiology25
Physical Therapist in Private Practice20
Internal Medicine19
Mental Health Counselor18
Cardiovascular Disease (Cardiology)14
33 other specialties148

Nearest to this location (20)

See all 527
Kristen Vento, D.O.
Family Practice
NPI 1225205255
820 SUMMIT AVE PROHEALTH CARE MEDICAL ASSOCIATES
Oconomowoc, WI 53066
(262) 567-0223
✔ PECOS✔ Accepts MedicareSame address
Dale Johnson, MD
Family Practice
NPI 1447211404
820 SUMMIT AVE PROHEALTH CARE MEDICAL ASSOCIATES FP
Oconomowoc, WI 53066
(262) 567-0223
✔ PECOS✔ Accepts MedicareSame address
Sarit Aschkenazi Steinberg, MD
Obstetrics/Gynecology
NPI 1972602852
785 SUMMIT AVE STE 101 PROHEALTH CARE WOMEN'S CENTER
Oconomowoc, WI 53066
(262) 569-0345
✔ PECOS✔ Accepts Medicare0.1 mi
Evgeniya Khen, NP
Nurse Practitioner
NPI 1023790664
791 SUMMIT AVE
Oconomowoc, WI 53066
(262) 569-9400
✔ PECOS✔ Accepts Medicare0.1 mi
Norhan Mohammed, M.D.
Cardiovascular Disease (Cardiology)
NPI 1225487176
791 SUMMIT AVE
Oconomowoc, WI 53066
(262) 569-9400
✔ PECOS✔ Accepts Medicare0.1 mi
Jodi Wiebelhaus, NP
Nurse Practitioner
NPI 1457551764
785 SUMMIT AVE
Oconomowoc, WI 53066
(262) 569-8488
✔ PECOS✔ Accepts Medicare0.2 mi
Cynthia Pangallo, MD
General Surgery
NPI 1710946132
888 THACKERAY TRL STE 103
Oconomowoc, WI 53066
(262) 567-1499
✔ PECOS✔ Accepts Medicare0.2 mi
Stanley Markus, MD
General Surgery
NPI 1134103641
888 THACKERAY TRL STE 103
Oconomowoc, WI 53066
(262) 567-1499
✔ PECOS✔ Accepts Medicare0.3 mi
Lisa James
Mental Health Counselor
NPI 1356805808
418 E WISCONSIN AVE
Oconomowoc, WI 53066
(414) 429-6403
✔ PECOS✔ Accepts Medicare0.8 mi
Kathleen Garvey, M.D.
Dermatology
NPI 1760505234
1320 PABST FARMS CIR UNIT 180
Oconomowoc, WI 53066
(262) 560-0322
✔ PECOS✔ Accepts Medicare1.9 mi
Michelle Schlomer, MSN, APNP
Nurse Practitioner
NPI 1376540864
1185 CORPORATE CENTER DR SUITE 175 PROHEALTH CARE MEDICAL ASSOCIATES INC
Waukesha, WI 53188
(262) 928-8400
✔ PECOS✔ Accepts Medicare2.0 mi
Brenda Boschek, M.D.
Pediatric Medicine
NPI 1154393833
1185 CORPORATE CENTER DRIVE PROHEALTH CARE MEDICAL ASSOCIATES, INC.
Oconomowoc, WI 53066
(262) 928-8400
✔ PECOS✔ Accepts Medicare2.1 mi
Firas Ghanem, M.D.
Cardiovascular Disease (Cardiology)
NPI 1124008529
1185 CORPORATE CENTER DR
Oconomowoc, WI 53066
(262) 928-8800
✔ PECOS✔ Accepts Medicare2.1 mi
Sarah Sanford-Smith, MSN FNP-C
Nurse Practitioner
NPI 1073197000
1185 CORPORATE CENTER DR
Oconomowoc, WI 53066
(262) 928-8400
✔ PECOS✔ Accepts Medicare2.1 mi
Charles Allen, M.D.
Family Practice
NPI 1871804336
1185 CORPORATE CENTER DR STE 175
Oconomowoc, WI 53066
(262) 928-8400
✔ PECOS✔ Accepts Medicare2.1 mi
Jennifer Scheeler, M.D.
Family Practice
NPI 1649412339
1185 CORPORATE CENTER DR STE 175
Oconomowoc, WI 53066
(414) 928-4644
✔ PECOS✔ Accepts Medicare2.1 mi
David Schlomer, M.D.
Internal Medicine
NPI 1952373581
1185 CORPORATE CENTER DR PROHEALTH CARE MEDICAL ASSOCIATES INC.
Oconomowoc, WI 53066
(262) 928-8400
✔ PECOS✔ Accepts Medicare2.1 mi
William Cooper, MD
Internal Medicine
NPI 1023078037
1185 CORPORATE CENTER DR STE 175 PROHEALTH CARE MEDICAL ASSOCIATES INC.
Oconomowoc, WI 53066
(262) 928-8400
✔ PECOS✔ Accepts Medicare2.1 mi
Sophos Geroulis, M.D.
Neurology
NPI 1295820637
36500 AURORA DR
Summit, WI 53066
(262) 434-5000
✔ PECOS✔ Accepts Medicare2.5 mi
Arthur Coffey, M.D.
Cardiac Surgery
NPI 1114946589
425 WELLS ST APT 110
Delafield, WI 53018
(317) 507-0927
✔ PECOS✔ Accepts Medicare4.8 mi
See all 527 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 52D2192613

Prohealth Medical Group, Inc - Oconomowoc Urgent Care Services · Oconomowoc, WI
Active · expires Sep 10, 2028
CLIA Number52D2192613
Laboratory TypePhysician Office
Certificate Effective DateSeptember 11, 2026
Certificate Expiration DateSeptember 10, 2028
Laboratory DirectorDr. Megan Edwards
Laboratory Phone(262) 928-1825
Laboratory LocationProhealth Medical Group, Inc - Oconomowoc Urgent Care Services1185 Corporate Center Drive Suite 155, Oconomowoc, WI 53066
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Prohealth Medical Group Inc's NPI number?

The NPI number for Prohealth Medical Group Inc is 1386897965. It was assigned to this organization in the NPPES registry on October 28, 2008.

Where is Prohealth Medical Group Inc located?

Prohealth Medical Group Inc is located at 820 Summit Ave, Oconomowoc, WI 53066. The listed phone number is (262) 567-0223.

What is Prohealth Medical Group Inc's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Prohealth Medical Group Inc enrolled in Medicare?

Yes. Prohealth Medical Group Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Prohealth Medical Group Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 527 clinicians in 41 Medicare specialties reassign their Medicare billing to Prohealth Medical Group Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (174), Family Practice (83) and Clinical Social Worker (26). Of these, 2 practice at this address and 43 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Prohealth Medical Group Inc hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 52D2192613) is associated with this NPI, valid through September 10, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Prohealth Medical Group Inc was last updated on May 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.