What is Stephanie Williams's NPI number?

Stephanie Williams's National Provider Identifier (NPI) is 1558914200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Stephanie Williams's specialty?

Stephanie Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Stephanie Williams located?

Stephanie Williams's practice location on file with NPPES is 2149 S Queen St, York, PA 17403-4845.

What is Stephanie Williams's phone number?

The practice phone number listed in the NPPES registry for Stephanie Williams is (717) 851-1405.

Does Stephanie Williams accept Medicare?

Stephanie Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Stephanie Williams's NPI active?

Yes — Stephanie Williams's NPI (1558914200) is active in the NPPES registry as of the last update on 2026-06-04.

IndividualActiveAccepts Medicare

Stephanie Williams, CRNP

NPI 1558914200 · Family Nurse Practitioner · York, PA

Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Stephanie Williams, CRNP is a Family Nurse Practitioner provider in York, PA (NPI 1558914200).

Provider details

NPI number: 1558914200
Entity type: Individual
Primary specialty: Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Credential: CRNP
Sex: Female
Sole proprietor: No
License: RN290763L (PA)

Specialties & taxonomies

Family Nurse PractitionerPrimary363LF0000XLicense SP020802 (PA)
Physician Assistants & Advanced Practice Nursing Providers
Registered Nurse163W00000XLicense RN290763L (PA)
Nursing Service Providers

Profile Score

Established profile(63/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
6 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
9 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
382 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	131	$73
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	115	$103
Respiratory Infectious Agent Detection By Rna for Severe Acute Respiratory Syndrome Coronavirus 2 (covid 19), Influenza A, Influenza B, and Respiratory Syncytial Virus, Upper Respiratory Specimen, Each Reported As Detected Or Not Detected0241U	24	$140
X-Ray of Chest, 2 Views71046	24	$26
Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000	21	$11
Inhalation Treatment for Airway Obstruction Or Sputum Production

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Doxycycline Monohydrate	90	90
Methylprednisolone	71	70
Prednisone	49	48
Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass	34	34
Azithromycin	21	21
Albuterol Sulfatebrand: Albuterol Sulfate Hfa	19	13
Cephalexin	17	17

Practice location

2149 S Queen St

York, PA 17403-4845

Phone: (717) 851-1405

Street-level locationGet directions

More PA providers

Mailing address

601 Memory Ln

York, PA 17402-2231

Additional practice locations (8)

9 Nathan Ln
Annville, PA 17003-6500
Phone: (717) 639-3350
Fax: (717) 303-3546
446 N Reading Rd
Ephrata, PA 17522-9802
Phone: (717) 738-5275
Fax: (717) 738-5278
455 S Washington St Ste 12
Gettysburg, PA 17325-2516
Phone: (717) 339-2875
Fax: (717) 334-3921
100 Eisenhower Dr Ste 360
Hanover, PA 17331-5241
Phone: (717) 646-4201
Fax: (717) 646-4202
101 W Airport Rd
Lititz, PA 17543-9274
Phone: (717) 466-2445
Fax: (717) 466-2447
4050 N George Street Ext
Manchester, PA 17345-9347
Phone: (717) 356-4370
Fax: (717) 260-3316
96 Sofia Dr Ste 208
Shrewsbury, PA 17361-5201
Phone: (717) 812-2400
Fax: (717) 812-3005
717 Town Center Dr
York, PA 17408-4824
Phone: (717) 356-4240

Enumerated: 2019-07-22
Last updated: 2026-06-04
Certified: 2026-06-04

Frequently asked questions

What is Stephanie Williams's NPI number?: Stephanie Williams's National Provider Identifier (NPI) is 1558914200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Stephanie Williams's specialty?: Stephanie Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
Where is Stephanie Williams located?: Stephanie Williams's practice location on file with NPPES is 2149 S Queen St, York, PA 17403-4845.
What is Stephanie Williams's phone number?: The practice phone number listed in the NPPES registry for Stephanie Williams is (717) 851-1405.
Does Stephanie Williams accept Medicare?: Stephanie Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Stephanie Williams's NPI active?: Yes — Stephanie Williams's NPI (1558914200) is active in the NPPES registry as of the last update on 2026-06-04.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.