Active NPI
Calvin Brian Mah, CRNA
- Certified Registered Nurse Anesthetist
- Harrisburg, PA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Certified Registered Nurse Anesthetist
- License
- RN570026
- Practice address
- 4300 Londonderry Rd
Harrisburg, PA 17109-5317 - Phone
- (717) 782-5118
- Fax
- (717) 782-5854
- NPI assigned
- Dec 23, 2008
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Certified Registered Nurse Anesthetist | 367500000X | 149664 | MO | |
| Certified Registered Nurse Anesthetist | 367500000X | RN570026 | PA | Primary |
Addresses
Primary practice location
4300 Londonderry Rd
Harrisburg, PA 17109-5317
Mailing address
PO Box 858
MC A410
Hershey, PA 17033-0858
Phone (800) 243-1455
Other practice location 1
500 University Dr
Hershey, PA 17033
Phone (717) 531-6597
Other practice location 2
503 N 21st St
Camp Hill, PA 17011-2204
Phone (717) 763-2100
Other practice location 3
503 N 21st St
Camp Hill, PA 17011-2204
Phone (717) 763-2100
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1022567420004 | Medicaid | PA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in PA
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Certified Registered Nurse Anesthetist (Crna)
- Education
- University of Pittsburgh School of Medicine, 2008
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
500 Universidy Dr
Hershey, PA 17033-2360
Phone (717) 531-8202
905 W Governor Rd
Suite 100
Hershey, PA 17033-2307
Phone (717) 531-1318
Hospital & facility affiliations
- Milton S Hershey Medical Center
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Certified Registered Nurse
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 149664 | MO | MD | Certified Registered Nurse Anesthetist |
| RN570026 | PA | MD | Certified Registered Nurse Anesthetist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| The Milton S Hershey Medical Center Physician Group | Current | Accepting new patients | |
| Geisinger Clinic | Current | Accepting new patients | |
| Penn State Health Medical Group, LLC | Current | Accepting new patients | |
| Geisinger Clinic | Current | Accepting new patients | |
| Penn State Health Medical Group, LLC | Current | Accepting new patients | |
| The Milton S Hershey Medical Center Physicians Group | Current | Accepting new patients | |
| Geisinger Clinic | Current | Accepting new patients | |
| Hershey Anesthesia LLC | Nurse Anesthetist, Certified Registered | Current | Accepting new patients |
| The Milton S Hershey Medical Center Physician Group | Current | Accepting new patients | |
| Penn State Health Medical Group, LLC | Current | Accepting new patients | |
| Hershey Endoscopy Center, LLC | Current | Accepting new patients |
Locations
503 N 21st St
Camp Hill, PA 17011
Phone (717) 763-2100
503 N 21st St
#A410
Camp Hill, PA 17011
100 N Academy Ave
Danville, PA 17822
2200 Good Hope Rd
Enola, PA 17025
Phone (717) 981-8230
1120 Cocoa Ave
Hershey, PA 17033
Phone (717) 533-4141
500 University Dr
Hershey, PA 17033
Phone (717) 531-8181
905 W Governor Rd
Ste 100
Hershey, PA 17033
Phone (717) 531-1318
500 University Dr
#A410
Hershey, PA 17033
Phone (717) 531-8131
500 University Dr
#41
Hershey, PA 17033
Phone (717) 531-8202
500 University Dr
#410
Hershey, PA 17033
Phone (717) 531-1159
4300 Londonderry Rd
Lower Paxton, PA 17109
Phone (717) 597-7044
Organizations & group practices 11
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.
-
- Certified Registered Nurse Anesthetist
- Hershey, PA
- NPI 1861429128
Nurse Anesthetist, Certified Registered
-
- Orthopaedic Surgery Physician
- Hershey, PA
- NPI 1710951744
-
- Family Medicine Physician
- Danville, PA
- NPI 1366493868
-
- Diagnostic Radiology Physician
- Danville, PA
- NPI 1558313023
-
- Family Medicine Physician
- State College, PA
- NPI 1639747462
-
- Ambulatory Surgical Clinic/Center
- Hershey, PA
- NPI 1710985445
-
- Diagnostic Radiology Physician
- Harrisburg, PA
- NPI 1457824013
-
- Obstetrics & Gynecology Physician
- Camp Hill, PA
- NPI 1649937152
-
- Hematology & Oncology Physician
- Harrisburg, PA
- NPI 1861988644
-
- Body Imaging Physician
- Hershey, PA
- NPI 1346215928
-
- Anesthesiology Physician
- Hershey, PA
- NPI 1790759280
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Hershey, PA
- NPI 1568435477
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1229990400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782086400000",
"number": "1285870253",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 858",
"address_2": "MC A410",
"city": "HERSHEY",
"state": "PA",
"postal_code": "170330858",
"telephone_number": "800-243-1455"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4300 LONDONDERRY RD",
"city": "HARRISBURG",
"state": "PA",
"postal_code": "171095317",
"telephone_number": "717-782-5118",
"fax_number": "717-782-5854"
}
],
"practiceLocations": [
{
"address_1": "500 University Dr",
"address_purpose": "LOCATION",
"city": "Hershey",
"state": "PA",
"postal_code": "17033",
"country_code": "US",
"telephone_number": "717-531-6597",
"fax_number": "717-531-7790",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "503 N 21st St",
"address_purpose": "LOCATION",
"city": "Camp Hill",
"state": "PA",
"postal_code": "170112204",
"country_code": "US",
"telephone_number": "717-763-2100",
"fax_number": "717-975-0779",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "503 N 21st St",
"address_purpose": "LOCATION",
"city": "Camp Hill",
"state": "PA",
"postal_code": "170112204",
"country_code": "US",
"telephone_number": "717-763-2100",
"fax_number": "717-975-0779",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "MAH",
"first_name": "CALVIN",
"middle_name": "BRIAN",
"credential": "CRNA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2008-12-23",
"last_updated": "2026-06-22",
"certification_date": "2026-06-22",
"status": "A"
},
"taxonomies": [
{
"code": "367500000X",
"taxonomy_group": "",
"desc": "Nurse Anesthetist, Certified Registered",
"state": "MO",
"license": "149664",
"primary": false
},
{
"code": "367500000X",
"taxonomy_group": "",
"desc": "Nurse Anesthetist, Certified Registered",
"state": "PA",
"license": "RN570026",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "1022567420004",
"state": "PA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Harrisburg, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- 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.