Individual provider Active NPI

Katherine Gruber Wafer, CRNP

  • Family Nurse Practitioner
  • Hagerstown, MD
National Provider Identifier
1164617379
Registry record updated Mar 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
R164999 Issued in MD
Practice address
201 S Cleveland Ave
Hagerstown, MD 21740-5745
Phone
(301) 745-3777
NPI assigned
Sep 11, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 4, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X R164999 MD
Family Nurse Practitioner 363LF0000X 4704339284 MI
Family Nurse Practitioner 363LF0000X R164999 MD Primary

Addresses

Primary practice location

201 S Cleveland Ave
Hagerstown, MD 21740-5745

Mailing address

11432 Isaac CT
Hagerstown, MD 21742-3708
Phone (301) 331-2293

Other practice location 1

1741 Dual Hwy Ste A
Hagerstown, MD 21740-6626
Phone (301) 790-0254

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, DC, WV, IN, VA5 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 5

Enrollment IDStateProvider typePAC IDDetails
I20080211000734 MD Practitioner - Nurse Practitioner 1658454822 Reassigns benefits to 9 organizations
I20180731000130 DC Practitioner - Nurse Practitioner 1658454822 Reassigns benefits to 3 organizations
I20260107003946 WV Practitioner - Nurse Practitioner 1658454822 Reassigns benefits to 1 organization
I20260409002082 IN Practitioner - Nurse Practitioner 1658454822 Reassigns benefits to 1 organization
I20260608001436 VA Practitioner - Nurse Practitioner 1658454822 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Post Acute Telehealth PCGroup PAC ID 9638585391, 63 clinicians
Meritus Medical Center IncGroup PAC ID 7113811795, shared by 8 NPIs, 730 clinicians
CRH MD Management LLCGroup PAC ID 2466841028, 70 clinicians

Practice addresses (Care Compare)

100 Heartland Dr
Beckley, WV 25801-2655
Phone (304) 256-1650

100 Hresan Blvd
Fayetteville, WV 25840-1333
Phone (304) 574-0770

100 Laurel Dr
Elkton, MD 21921-5328
Phone (410) 398-8800

101 Potters LN
Clarksville, IN 47129-1017
Phone (812) 948-0808

105 Time SQ
Salisbury, MD 21801-2808
Phone (410) 749-2474

1053 Clinic Dr
Ivydale, WV 25113-8266
Phone (304) 286-4204

10797 Seneca TRL S
Lindside, WV 24951-7345
Phone (304) 753-4332

1081 Maplewood Dr
Bridgeport, WV 26330-9848
Phone (304) 842-4135

11110 Medical Campus Rd
Hagerstown, MD 21742-6700

1115 Maplewood Ave
Lewisburg, WV 24901-9728
Phone (304) 645-3076

1234 Washington Rd
Westminster Healthcare Center
Westminster, MD 21157-5854
Phone (410) 848-0700

1263 S George St
Charles Town, WV 25414-4384
Phone (304) 725-6575

1275 Southview Dr
Bluefield, WV 24701-4347
Phone (304) 325-5448

135 Southern Dr
Keyser, WV 26726-2010
Phone (304) 788-3415

144 Washington Rd
South River Healthcare Center
Edgewater, MD 21037-1412
Phone (410) 956-5000

14751 Carey Rd
Carmel, IN 46033-9084
Phone (317) 575-2208

1741 Dual Hwy
Hagerstown, MD 21740-6624
Phone (301) 790-0254

183 Holbrook Rd
Buckhannon, WV 26201-0029
Phone (304) 472-3280

198 John Cook Nursing Home Rd
Hinton, WV 25951-5074
Phone (304) 466-0332

2 Hospital PLZ
Grafton, WV 26354-1283
Phone (304) 265-0008

20 Wilson Dr
Cameron, WV 26033-2024
Phone (304) 686-3318

200 W Green Meadows Dr
Greenfield Healthcare Center
Greenfield, IN 46140-1014
Phone (317) 462-3311

209 Clover St
Martinsburg, WV 25404-3803
Phone (304) 263-8921

2200 Floral St
Moundsville, WV 26041-1293
Phone (304) 843-1035

2222 E Margaret Dr
Southwood Healthcare Center
Terre Haute, IN 47802-3339
Phone (812) 232-2223

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse, Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
R164999MDMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
CRH MD Management LLC CurrentSince Feb 28, 2025 Accepting new patients
Synergy Medical Group LLC Current Accepting new patients
Mdics at Meritus Medical Center, LLC CurrentSince Oct 1, 2014 Accepting new patients
Medexpress Urgent Care, PC - Maryland Current Accepting new patients
Medexpress Urgent Care, PC - Maryland Family Medicine CurrentSince Sep 1, 2024 Accepting new patients
Mdics at Umroi, LLC CurrentSince Feb 26, 2020 Accepting new patients
Mdics at Anne Arundel LLC CurrentSince Mar 6, 2019 Accepting new patients
Post Acute Telehealth PC Family Medicine CurrentSince Jul 8, 2025 Accepting new patients
Synergy Medical Group LLC CurrentSince Aug 12, 2025 Accepting new patients
Synergy Medical Group LLC CurrentSince Aug 12, 2025 Accepting new patients
Adfinitas Health at Umcap, LLC CurrentSince Aug 15, 2022 Accepting new patients
Mdics at Calvert LLC CurrentSince Nov 6, 2018 Accepting new patients
CRH MD Management LLC CurrentSince Feb 28, 2025 Accepting new patients
Walnut Street Community Health Center, Inc. CurrentSince Oct 3, 2023 Accepting new patients
Walnut Street Community Health Center, Inc. CurrentSince Oct 3, 2023 Accepting new patients
CRH MD Management, LLC CurrentSince Feb 28, 2025 Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients

Locations (25 of 26)

590 Lanier Ave W
Fayetteville, GA 30214

904 Commerce Rd
Annapolis, MD 21401
Phone (410) 849-6140

2525 W Belvedere Ave
Baltimore, MD 21215
Phone (410) 367-9100

9211 Stuart Ln
Clinton, MD 20735
Phone (301) 868-3600

100 Laurel Dr
Elkton, MD 21921
Phone (410) 398-8800

11116 Medical Campus Rd
Hagerstown, MD 21742
Phone (301) 766-7600

201 S Cleveland Ave
Hagerstown, MD 21740
Phone (301) 745-3777

1741 Dual Hwy
Hagerstown, MD 21740
Phone (301) 337-7749

1741 Dual Hwy
Ste A
Hagerstown, MD 21740
Phone (301) 790-0254

5 Garrett Ave
La Plata, MD 20646
Phone (301) 609-4000

14421 Baltimore Ave
Laurel, MD 20707
Phone (240) 786-6684

100 Hospital Rd
Prnc Frederck, MD 20678
Phone (410) 414-4791

11804 Reisterstown Rd
Reisterstown, MD 21136
Phone (410) 870-5094

105 Time Sq
Salisbury, MD 21801
Phone (410) 749-2474

200 Civic Ave
Salisbury, MD 21804
Phone (410) 749-1466

310 Genesis Way
Ste 600
Severna Park, MD 21146
Phone (410) 544-4220

2601 Bel Pre Rd
Silver Spring, MD 20906
Phone (301) 598-6000

3227 Bel Pre Rd
Silver Spring, MD 20906
Phone (301) 871-2000

14090 Hg Trueman Rd
Ste 1300
Solomons, MD 20688
Phone (410) 394-2800

1205 York Rd
Ste 11
Timonium, MD 21093
Phone (443) 325-0031

901 Harry S Truman Dr N
Uppr Marlboro, MD 20774
Phone (240) 677-0021

200 Memorial Ave
Westminster, MD 21157
Phone (410) 848-3000

1234 Washington Rd
Westminster, MD 21157
Phone (410) 848-0700

2200 Kernan Dr
Woodlawn, MD 21207
Phone (410) 448-2500

100 Heartland Dr
Beckley, WV 25801
Phone (304) 256-1650

Interoperability endpoints

  • Direct secure messaging: katherine.schnebly.p1@direct.familyhch.nextgenshare.com

Organizations & group practices 17

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.

View all 17

NPI Registry JSON

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

{
    "created_epoch": "1189468800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772582400000",
    "number": "1164617379",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11432 ISAAC CT",
            "city": "HAGERSTOWN",
            "state": "MD",
            "postal_code": "217423708",
            "telephone_number": "301-331-2293"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "201 S CLEVELAND AVE",
            "city": "HAGERSTOWN",
            "state": "MD",
            "postal_code": "217405745",
            "telephone_number": "301-745-3777"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1741 Dual Hwy Ste A",
            "address_purpose": "LOCATION",
            "city": "Hagerstown",
            "state": "MD",
            "postal_code": "217406626",
            "country_code": "US",
            "telephone_number": "301-790-0254",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WAFER",
        "first_name": "KATHERINE",
        "middle_name": "GRUBER",
        "credential": "CRNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-09-11",
        "last_updated": "2026-03-04",
        "certification_date": "2026-03-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MD",
            "license": "R164999",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MI",
            "license": "4704339284",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MD",
            "license": "R164999",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Hagerstown, MD

Sources for this page

Verify at the official NPI Registry.