Active NPI
Katherine Gruber Wafer, CRNP
- Family Nurse Practitioner
- Hagerstown, MD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Nurse Practitioner
- License
- R164999
- 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
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 |
|---|---|---|---|---|
| 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, VA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 5
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
- Meritus Medical Center Inc
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
| License | State | Type | Specialty |
|---|---|---|---|
| R164999 | MD | MD | Family Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| CRH MD Management LLC | Current | Accepting new patients | |
| Synergy Medical Group LLC | Current | Accepting new patients | |
| Mdics at Meritus Medical Center, LLC | Current | Accepting new patients | |
| Medexpress Urgent Care, PC - Maryland | Current | Accepting new patients | |
| Medexpress Urgent Care, PC - Maryland | Family Medicine | Current | Accepting new patients |
| Mdics at Umroi, LLC | Current | Accepting new patients | |
| Mdics at Anne Arundel LLC | Current | Accepting new patients | |
| Post Acute Telehealth PC | Family Medicine | Current | Accepting new patients |
| Synergy Medical Group LLC | Current | Accepting new patients | |
| Synergy Medical Group LLC | Current | Accepting new patients | |
| Adfinitas Health at Umcap, LLC | Current | Accepting new patients | |
| Mdics at Calvert LLC | Current | Accepting new patients | |
| CRH MD Management LLC | Current | Accepting new patients | |
| Walnut Street Community Health Center, Inc. | Current | Accepting new patients | |
| Walnut Street Community Health Center, Inc. | Current | Accepting new patients | |
| CRH MD Management, LLC | Current | 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
- 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.
-
- Hospitalist Physician
- Annapolis, MD
- NPI 1427343664
-
- Hospitalist Physician
- Prince Frederick, MD
- NPI 1033404207
-
- Hospitalist Physician
- Hagerstown, MD
- NPI 1306258645
-
- Hospitalist Physician
- Gwynn Oak, MD
- NPI 1588023667
-
- Urgent Care Clinic/Center
- Hagerstown, MD
- NPI 1164707980
-
- Internal Medicine Physician
- Lutherville, MD
- NPI 1912736901
-
- Federally Qualified Health Center (FQHC)
- Hagerstown, MD
- NPI 1366425266
-
- Urgent Care Clinic/Center
- Laurel, MD
- NPI 1780344093
-
- Urgent Care Clinic/Center
- Fort Washington, MD
- NPI 1841072477
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 4, 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.