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PROHEALTH MEDICAL GROUP INC
NPI 1629119417
Internal Medicine in Watertown, WI

Active since February 12, 2007CLIA 52D0892442 · Microscopy
109 AIR PARK DR, WATERTOWN, WI 53094(262) 928-5100(262) 928-5111 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 1629119417) is a healthcare organization registered as an internal medicine in Watertown, Wisconsin and active in the NPI registry since February 2007. The organization holds a CLIA Microscopy certificate valid through November 14, 2026 and lists Peter Geiss, Md, President, as its authorized official.

NPPES Registry Identity

NPI1629119417
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NamePROHEALTH MEDICAL GROUP INC
Location Address109 AIR PARK DRWatertown, WI 53094-7400
Mailing AddressN17w24100 Riverwood Dr, Suite 250Waukesha, WI 53188-1177 · (262) 928-4100 · Fax (262) 928-5835
Phone(262) 928-5100
Fax(262) 928-5111
Organization SubpartYes
Authorized OfficialPeter Geiss, MdPresident · (262) 928-8669
Enumeration DateFebruary 12, 2007
Last NPPES UpdateMay 23, 20222 updates tracked since enumeration
NPPES CertifiedMay 23, 2022
✔ NPI 1629119417 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 7

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedAllergy & ImmunologyTaxonomy 207K00000X
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedObstetrics & GynecologyTaxonomy 207V00000X
Also ListedOtolaryngologyTaxonomy 207Y00000X
Also ListedPediatricsTaxonomy 208000000X
Also ListedPhysical Medicine & RehabilitationTaxonomy 208100000X
109 AIR PARK DR, Watertown, WI 53094
Open in Google Maps ↗

Other Identifiers 2

Other0505180009WI · Dme
Medicaid32877500WI

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 3 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
Jewel Schneider, APNP
Nurse Practitioner
NPI 1225579253
109 AIR PARK DR
Watertown, WI 53094
(920) 262-7444
✔ PECOS✔ Accepts MedicareSame address
Edward Frost, MD
Pediatric Medicine
NPI 1184698227
109 AIR PARK DR PROHEALTH CARE MEDICAL ASSOCIATES INC.
Watertown, WI 53094
(262) 928-5100
✔ PECOS✔ Accepts MedicareSame address
Amber Hendriksen, NP
Nurse Practitioner
NPI 1881244358
1507 DOCTORS CT
Watertown, WI 53094
(920) 261-4111
✔ PECOS✔ Accepts Medicare2.3 mi
Rachel Guenther, NP
Nurse Practitioner
NPI 1346751120
840 W RACINE ST
Jefferson, WI 53549
(920) 674-6000
✔ PECOS✔ Accepts Medicare12 mi
Lisa James
Mental Health Counselor
NPI 1356805808
418 E WISCONSIN AVE
Oconomowoc, WI 53066
(414) 429-6403
✔ PECOS✔ Accepts Medicare12 mi
Jodi Wiebelhaus, NP
Nurse Practitioner
NPI 1457551764
785 SUMMIT AVE
Oconomowoc, WI 53066
(262) 569-8488
✔ PECOS✔ Accepts Medicare13 mi
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 Medicare13 mi
Norhan Mohammed, M.D.
Cardiovascular Disease (Cardiology)
NPI 1225487176
791 SUMMIT AVE
Oconomowoc, WI 53066
(262) 569-9400
✔ PECOS✔ Accepts Medicare13 mi
Kristen Vento, D.O.
Family Practice
NPI 1225205255
820 SUMMIT AVE PROHEALTH CARE MEDICAL ASSOCIATES
Oconomowoc, WI 53066
(262) 567-0223
✔ PECOS✔ Accepts Medicare13 mi
Dale Johnson, MD
Family Practice
NPI 1447211404
820 SUMMIT AVE PROHEALTH CARE MEDICAL ASSOCIATES FP
Oconomowoc, WI 53066
(262) 567-0223
✔ PECOS✔ Accepts Medicare13 mi
Cynthia Pangallo, MD
General Surgery
NPI 1710946132
888 THACKERAY TRL STE 103
Oconomowoc, WI 53066
(262) 567-1499
✔ PECOS✔ Accepts Medicare13 mi
Stanley Markus, MD
General Surgery
NPI 1134103641
888 THACKERAY TRL STE 103
Oconomowoc, WI 53066
(262) 567-1499
✔ PECOS✔ Accepts Medicare13 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 Medicare14 mi
Firas Ghanem, M.D.
Cardiovascular Disease (Cardiology)
NPI 1124008529
1185 CORPORATE CENTER DR
Oconomowoc, WI 53066
(262) 928-8800
✔ PECOS✔ Accepts Medicare14 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 Medicare14 mi
Kathleen Garvey, M.D.
Dermatology
NPI 1760505234
1320 PABST FARMS CIR UNIT 180
Oconomowoc, WI 53066
(262) 560-0322
✔ PECOS✔ Accepts Medicare14 mi
Sophos Geroulis, M.D.
Neurology
NPI 1295820637
36500 AURORA DR
Summit, WI 53066
(262) 434-5000
✔ PECOS✔ Accepts Medicare15 mi
Arthur Coffey, M.D.
Cardiac Surgery
NPI 1114946589
425 WELLS ST APT 110
Delafield, WI 53018
(317) 507-0927
✔ PECOS✔ Accepts Medicare18 mi
Jose Pareja Zabala
Sleep Medicine
NPI 1407389414
2301 SUN VALLEY DR
Delafield, WI 53018
(262) 928-4043
✔ PECOS✔ Accepts Medicare19 mi
Jennifer Janowski, PHYSICAL THERAPIST
Physical Therapist in Private Practice
NPI 1447888607
2900 GOLF RD
Pewaukee, WI 53072
(262) 928-7356
✔ Accepts Medicare24 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 for Provider-Performed Microscopy Procedures (PPMP) 52D0892442

Prohealth Medical Group, Inc - Watertown · Watertown, WI
Active · expires Nov 14, 2026
CLIA Number52D0892442
Laboratory TypePhysician Office
Certificate Effective DateNovember 15, 2024
Certificate Expiration DateNovember 14, 2026
Laboratory DirectorDr. Edward F. Frost
Laboratory Phone(920) 262-7444
Laboratory LocationProhealth Medical Group, Inc - Watertown109 Air Park Dr, Watertown, WI 53094
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform 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 1629119417. It was assigned to this organization in the NPPES registry on February 12, 2007.

Where is Prohealth Medical Group Inc located?

Prohealth Medical Group Inc is located at 109 Air Park Dr, Watertown, WI 53094. The listed phone number is (262) 928-5100.

What is Prohealth Medical Group Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

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 3 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 for Provider-Performed Microscopy Procedures (PPMP) (number 52D0892442) is associated with this NPI, valid through November 14, 2026. 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.