Individual provider Active NPI

Sarah Cathleen Peterson, M.D.

  • Allergy & Immunology Physician
  • Buffalo Grove, IL
National Provider Identifier
1114174828
Registry record updated Apr 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Allergy & Immunology PhysicianTaxonomy code 207K00000X
License
036125565 Issued in IL
Practice address
15 S McHenry Rd
Buffalo Grove, IL 60089-6705
Phone
(847) 618-0326
Fax
(847) 618-0762
NPI assigned
Aug 25, 2008
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 28, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 036125565 IL
Allergy & Immunology Physician 207K00000X 036125565 IL Primary

Addresses

Primary practice location

15 S McHenry Rd
Buffalo Grove, IL 60089-6705

Mailing address

15 S McHenry Rd
Buffalo Grove, IL 60089-6705
Phone (847) 618-0326

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address speterson23411@direct.nch.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20101104000389 IL Practitioner - Allergy/ImmunologyPractitioner - Internal Medicine 2163616004 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Allergy/Immunology
Education
University of Rochester School of Medicine and Dentistry, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Endeavor Health Medical GroupGroup PAC ID 2163334699, 3,330 clinicians

Practice addresses (Care Compare)

15 S McHenry Rd
Buffalo Grove, IL 60089-6705
Phone (847) 520-9424

2650 Ridge Ave
Evanston, IL 60201-1700

Hospital & facility affiliations

  • Northwest Community Hospital 1 Hospital, Arlington Heights, IL, CCN 140252

Merit-based Incentive Payment System (MIPS)

Final score
84.9 of 100Reported as group
Quality
75.91
Promoting interoperability
99
Improvement activities
40
Cost
74.6

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036125565ILMDAllergy & Immunology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Northwestern Medical Faculty Foundation CurrentSince Jul 1, 2010 Accepting new patients
Northwestern Medical Faculty Foundation CurrentSince Jul 1, 2010 Accepting new patients
Northwest Community Health Services Inc Allergy & Immunology CurrentSince Jul 15, 2013 Accepting new patients
Northwest Community Health Services Inc CurrentSince Jul 15, 2013 Accepting new patients
Endeavor Health Medical Group CurrentSince Nov 30, 2023 Accepting new patients
Endeavor Health Medical Group Allergy & Immunology CurrentSince Nov 30, 2023 Accepting new patients
Northwest Community Healthcare Past Accepting new patients

Locations

1051 W Rand Rd
Arlington Hts, IL 60004
Phone (847) 221-4601

15 S McHenry Rd
Fl 3
Buffalo Grove, IL 60089
Phone (847) 212-3885

1450 Busch Pkwy
Buffalo Grove, IL 60089
Phone (847) 459-7860

15 S McHenry Rd
Buffalo Grove, IL 60089
Phone (847) 459-6100

1450 Busch Pkwy
Ste 103
Buffalo Grove, IL 60089
Phone (847) 696-1100

Dept 5777
Carol Stream, IL 60122

25233 Network Pl
Chicago, IL 60673

9532 Eagle Way
Chicago, IL 60678

2650 Ridge Ave
Ste 2218A
Evanston, IL 60201
Phone (847) 503-4222

2650 Ridge Ave
Evanston, IL 60201
Phone (847) 570-1206

2650 Ridge Ave
Ste 1223
Evanston, IL 60201
Phone (847) 982-3175

Interoperability endpoints

  • Direct secure messaging: speterson23411@direct.nch.org
  • FHIR API: https://epicprdproxy.nch.org/prd-fhir/api/FHIR/R4

Organizations & group practices 7

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1219622400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777334400000",
    "number": "1114174828",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15 S MCHENRY RD",
            "city": "BUFFALO GROVE",
            "state": "IL",
            "postal_code": "600896705",
            "telephone_number": "847-618-0326",
            "fax_number": "847-618-0762"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15 S MCHENRY RD",
            "city": "BUFFALO GROVE",
            "state": "IL",
            "postal_code": "600896705",
            "telephone_number": "847-618-0326",
            "fax_number": "847-618-0762"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PETERSON",
        "first_name": "SARAH",
        "middle_name": "CATHLEEN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-08-25",
        "last_updated": "2026-04-28",
        "certification_date": "2026-04-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036125565",
            "primary": false
        },
        {
            "code": "207K00000X",
            "taxonomy_group": "",
            "desc": "Allergy & Immunology",
            "state": "IL",
            "license": "036125565",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "speterson23411@direct.nch.org",
            "affiliation": "N",
            "address_1": "1450 Busch Pkwy Ste 103",
            "city": "Buffalo Grove",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600894541",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Buffalo Grove, IL

Sources for this page

Verify at the official NPI Registry.