Active NPI
Kamal S Muzaffar, MD
- Family Medicine Physician
- Elkhorn, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 43819-20
- Practice address
- 100 S Washington St
Elkhorn, WI 53121-1732 - Phone
- (262) 743-1122
- Fax
- (262) 743-1582
- NPI assigned
- Feb 26, 2006
- Last updated
- Sep 29, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 43819-020 | WI | |
| Family Medicine Physician | 207Q00000X | 43819-20 | WI | Primary |
| Hospitalist Physician | 208M00000X | 43819-20 | WI |
Addresses
Primary practice location
100 S Washington St
Elkhorn, WI 53121-1732
Mailing address
100 S Washington St
Elkhorn, WI 53121-1732
Phone (262) 743-1122
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 34151600 | Medicaid | WI |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in WI
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Family Practice
- Education
- Other, 1990
- Medicare assignment
- May accept Medicare assignment
- Group practices
Practice addresses (Care Compare)
100 S Washington St
Elkhorn, WI 53121-1732
Phone (262) 743-1122
9555 76TH St
Pleasant Prairie, WI 53158-1984
Phone (262) 577-8000
W3985 County Rd NN
Elkhorn, WI 53121-4337
Phone (262) 741-2000
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 43819-020 | WI | MD | Emergency Medicine Physician |
| 43819-20 | WI | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Columbia St. Mary's Hospital Milwaukee, Inc | Family Medicine | Current | Accepting new patients |
| Elkhorn Family Clinic | Family Medicine | Current | Accepting new patients |
| Columbia St. Mary's Hospital Milwaukee Inc | Current | Accepting new patients | |
| Vituity-Wisconsin HM SC | Hospitalist | Current | Accepting new patients |
| Comprehensive Medical and Locum Associates SC | Current | Accepting new patients |
Locations
2100 Powell St
Ste 400
Emeryville, CA 94608
Phone (510) 350-2638
1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 350-2663
100 S Washington St
Elkhorn, WI 53121
Phone (262) 723-6302
W3985 Highway NN
Elkhorn, WI 53121
Phone (262) 741-2000
1001 W Glen Oaks Ln
Ste 105
Mequon, WI 53092
Phone (414) 258-8314
2323 N Lake Dr
Milwaukee, WI 53211
Phone (414) 291-1000
5000 W Chambers St
Milwaukee, WI 53210
Phone (414) 447-2089
7235 W Appleton Ave
Milwaukee, WI 53216
Phone (414) 434-8517
7235 W Appleton Ave
Ste 1
Milwaukee, WI 53216
Phone (414) 305-3422
9555 76th St
Pleasant Prairie, WI 53158
Phone (262) 577-8000
13111 N Port Washington Rd
Thiensville, WI 53097
Phone (262) 243-7300
Interoperability endpoints
- https://api.platform.athenahealth.com/9838/brand/1/csg/1/fhir/r4
- https://fhir4.healow.com/fhir/r4/FDJFBD/Endpoint/FDJFBD
Organizations & group practices 5
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Family Medicine Physician
- Elkhorn, WI
- NPI 1164637492
-
- Hospitalist Physician
- Pleasant Prairie, WI
- NPI 1679265912
-
dba Ascension Columbia St Mary's Hospital Milwaukee
- Multi-Specialty Clinic/Center
- Milwaukee, WI
- NPI 1023064482
Family Medicine
-
- Internal Medicine Physician
- Milwaukee, WI
- NPI 1770027815
-
dba Ascension Columbia St Mary's Hospital Ozaukee
- Psychiatric Hospital Unit
- Mequon, WI
- NPI 1417600909
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Elkhorn, WI
- NPI 1972628006
-
- General Acute Care Hospital
- Pleasant Prairie, WI
- NPI 1003831132
-
- Community Based Hospice Care Agency
- Glendale, WI
- NPI 1205433778
-
dba St. Croix Hospice
- Community Based Hospice Care Agency
- Baraboo, WI
- NPI 1649589540
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1140912000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1790640000000",
"number": "1174599500",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "100 S WASHINGTON ST",
"city": "ELKHORN",
"state": "WI",
"postal_code": "531211732",
"telephone_number": "262-743-1122",
"fax_number": "262-743-1582"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "100 S WASHINGTON ST",
"city": "ELKHORN",
"state": "WI",
"postal_code": "531211732",
"telephone_number": "262-743-1122",
"fax_number": "262-743-1582"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MUZAFFAR",
"first_name": "KAMAL",
"middle_name": "S",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-26",
"last_updated": "2026-09-29",
"certification_date": "2025-01-13",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "WI",
"license": "43819-020",
"primary": false
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "WI",
"license": "43819-20",
"primary": true
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "WI",
"license": "43819-20",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "34151600",
"state": "WI"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Elkhorn, WI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.