Active NPI
Elizabeth Williams-Drueding, DO
- Internal Medicine Physician
- King of Prussia, PA
National Provider Identifier
1639589351
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- OS023372
- Practice address
- 700 S Henderson Rd Ste 108
King of Prussia, PA 19406-3530 - Phone
- (484) 923-9176
- Fax
- (484) 873-1689
- NPI assigned
- May 2, 2014
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | OS023372 | PA | Primary |
Addresses
Primary practice location
700 S Henderson Rd Ste 108
King of Prussia, PA 19406-3530
Mailing address
700 S Henderson Rd Ste 108
King of Prussia, PA 19406-3530
Phone (484) 923-9176
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
- Opted out of Medicare
- Yes, effective Dec 20, 2024 through Dec 20, 2026
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Philadelphia College of Osteopathic Medicine, 2014
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Novacare Outpatient Rehabilitation East, Inc.
Practice addresses (Care Compare)
201 2ND Ave
Collegeville, PA 19426-3613
Phone (610) 489-7703
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| OS023372 | PA | MD | Internal Medicine Physician |
| 16533 | CA | MD | Speech-Language Pathologist |
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Bryn Mawr, PA
- NPI 1508971441
-
- General Acute Care Hospital
- Philadelphia, PA
- NPI 1851370910
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1398988800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1768262400000",
"number": "1639589351",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "700 S HENDERSON RD STE 108",
"city": "KING OF PRUSSIA",
"state": "PA",
"postal_code": "194063530",
"telephone_number": "484-923-9176",
"fax_number": "484-873-1689"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "700 S HENDERSON RD STE 108",
"city": "KING OF PRUSSIA",
"state": "PA",
"postal_code": "194063530",
"telephone_number": "484-923-9176",
"fax_number": "484-873-1689"
}
],
"practiceLocations": [],
"basic": {
"last_name": "WILLIAMS-DRUEDING",
"first_name": "ELIZABETH",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2014-05-02",
"last_updated": "2026-01-13",
"certification_date": "2026-01-13",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "PA",
"license": "OS023372",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in King of Prussia, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 13, 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; Opt Out Affidavits.
- 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.