NPIMap

Individual provider Active NPI

Mahmud S. Khan, MD

  • Nephrology Physician
  • Danville, PA
National Provider Identifier
1952331464
Registry record updated Apr 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
MD463005 Issued in PA
Practice address
100 N Academy Ave
Danville, PA 17822-1348
Phone
(570) 271-6393
Fax
(570) 271-5623
NPI assigned
Jul 3, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 29, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X 238575 NY
Nephrology Physician 207RN0300X MD463005 PA Primary

Addresses

Primary practice location

100 N Academy Ave
Danville, PA 17822-1348

Mailing address

100 N Academy Ave
Danville, PA 17822-4903
Phone (570) 271-6144

Other practice location 1

1227 Baltimore St
Hanover, PA 17331-4406
Phone (717) 339-2760

Other practice location 2

40 V Twin Dr Ste 205
Gettysburg, PA 17325-7878
Phone (717) 339-2768

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address mkhan153802@direct.geisinger.edu Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, PA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20141007000437 TX Practitioner - Nephrology 8426053257 Reassigns benefits to 1 organization
I20180111000857 PA Practitioner - NephrologyPractitioner - Internal Medicine 8426053257 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
NephrologyAlso: Internal Medicine
Education
Other, 1986
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Wellspan Medical GroupGroup PAC ID 1951213115, 2,438 clinicians

Practice addresses (Care Compare)

40 V Twin Dr
Suite 104
Gettysburg, PA 17325-7878
Phone (717) 851-6454

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Geisinger Clinic CurrentSince Jan 2, 2018 Accepting new patients
Wellspan Medical Group CurrentSince Feb 26, 2024 Accepting new patients
Wellspan Medical Group Current Accepting new patients
Geisinger Clinic Current Accepting new patients
Wellspan Medical Group CurrentSince Feb 26, 2024 Accepting new patients
Geisinger Clinic CurrentSince Jan 2, 2018 Accepting new patients
Alaska Native Tribal Health Consortium CurrentSince Aug 27, 2014 Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients
Mahmud S Khan MD Nephrology PastSince Jan 1, 1990 Accepting new patients
Nephrology & Hypertension Associates of Alaska, PC Nephrology Past Accepting new patients
Wellspan Medical Group Past Accepting new patients

Locations

4315 Diplomacy Dr
Anchorage, AK 99508
Phone (907) 729-1729

100 N Academy Ave
Danville, PA 17822

40 V Twin Dr
Gettysburg, PA 17325
Phone (717) 339-2424

40 V Twin Dr
Ste 104
Gettysburg, PA 17325
Phone (717) 338-9009

40 V Twin Dr
Ste 205
Gettysburg, PA 17325
Phone (717) 339-2790

1227 Baltimore St
Hanover, PA 17331
Phone (717) 646-4204

25 Monument Rd
Ste 270
York, PA 17403
Phone (717) 741-8250

Interoperability endpoints

  • Direct secure messaging: mkhan153802@direct.geisinger.edu
  • Direct secure messaging: mkhan415112@wellspan.direct-ci.com

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.

Hospital & facility affiliations 16

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

View all 16

NPI Registry JSON

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

{
    "created_epoch": "1151884800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777420800000",
    "number": "1952331464",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 N ACADEMY AVE",
            "city": "DANVILLE",
            "state": "PA",
            "postal_code": "178224903",
            "telephone_number": "570-271-6144",
            "fax_number": "570-271-6578"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 N ACADEMY AVE",
            "city": "DANVILLE",
            "state": "PA",
            "postal_code": "178221348",
            "telephone_number": "570-271-6393",
            "fax_number": "570-271-5623"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1227 Baltimore St",
            "address_purpose": "LOCATION",
            "city": "Hanover",
            "state": "PA",
            "postal_code": "173314406",
            "country_code": "US",
            "telephone_number": "717-339-2760",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "40 V Twin Dr Ste 205",
            "address_purpose": "LOCATION",
            "city": "Gettysburg",
            "state": "PA",
            "postal_code": "173257878",
            "country_code": "US",
            "telephone_number": "717-339-2768",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KHAN",
        "first_name": "MAHMUD",
        "middle_name": "S.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-03",
        "last_updated": "2026-04-29",
        "certification_date": "2026-04-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "NY",
            "license": "238575",
            "primary": false
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "PA",
            "license": "MD463005",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mkhan153802@direct.geisinger.edu",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "100 N Academy Ave",
            "city": "Danville",
            "state": "PA",
            "country_code": "US",
            "postal_code": "178221348",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Danville, PA

Sources for this page

Verify at the official NPI Registry.