1. Home
  2. Directory
  3. South Carolina
  4. Greenville
  5. Emergency Medicine
  6. NPI Profile

JOSEF MICHAEL WILLIAMS D.O.
NPI 1811252331
Emergency Medicine in Greenville, SC

Active since July 10, 2012PECOS Enrolled
701 GROVE RD, GREENVILLE, SC 29605(864) 455-7899(864) 455-5474 Get Directions Write a Review

NPPES record last updated: May 7, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 7, 2021, May 30, 2019 (2 updates tracked since 2019).

About Josef Michael Williams D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOSEF MICHAEL WILLIAMS D.O. (NPI 1811252331) is an individual emergency medicine provider in Greenville, South Carolina, licensed in South Carolina (37701) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811252331
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameJOSEF MICHAEL WILLIAMSCredential: D.O.
Location Address701 GROVE RDGreenville, SC 29605-4210
Mailing Address300 E Mcbee Ave Fl 4Greenville, SC 29601-2842 · (864) 522-8603
Phone(864) 455-7899
Fax(864) 455-5474
Sole ProprietorNo
Enumeration DateJuly 10, 2012
Last NPPES UpdateMay 7, 20212 updates tracked since enumeration
NPPES CertifiedMay 7, 2021
✔ NPI 1811252331 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in SC · 37701✔ Licensed in GA · RTP005475
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
701 GROVE RD, Greenville, SC 29605
Open in Google Maps ↗

Other Identifiers 1

Medicaid377014SC

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Josef Michael Williams D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Josef Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Prisma Health University Medical Group
0.1 mi
Nurse Practitioner
712 GROVE RD
Greenville, SC 29605
  • Reassigned Medicare billing, South Carolina enrollment
  • 3,281 clinicians in this Medicare group
NPI 1053786483 (864) 455-9349
Anmed Health
23 mi
Emergency Medicine
2000 E GREENVILLE ST
Anderson, SC 29621
  • Reassigned Medicare billing, South Carolina enrollment
  • 269 clinicians in this Medicare group
NPI 1588685333 (864) 512-1000
Ich ER Services, LLC
25 mi
Emergency Medicine
800 N FANT ST
Anderson, SC 29621
  • Reassigned Medicare billing, South Carolina enrollment
  • 116 clinicians in this Medicare group
NPI 1174002059 (800) 923-2247

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
147 services141 patients
Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
126 services124 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
43 services40 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
28 services27 patients
Emergency department visit with straightforward medical decision making 99282
An emergency department visit for a mild to moderate issue is when you seek immediate medical attention for a non-life-threatening condition. This could include minor injuries, moderate pain, or illnesses like the flu. During the visit, healthcare professionals assess your condition, provide treatment, and may recommend follow-up care.
25 services20 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29605 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$83.18 typical visit price
range $53.57 – $163.84
Typical copayment $20.79 (range $13.39 – $40.96)
Most-billed visit code 99203
Established Patient
$95.12 typical visit price
range $16.96 – $133.52
Typical copayment $23.78 (range $4.24 – $33.38)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DANIEL RUIZ
Internal Medicine
701 GROVE RD
GREENVILLE, SC 29605
Greenville County (864) 455-7882
ALAN ROBERT THOMPSON MD
Hospitalist
701 GROVE RD, 5TH FLOOR
GREENVILLE, SC 29605
Greenville County (864) 455-4411
GEORGE R SWEET CRNA
Nurse Anesthetist, Certified Registered
701 GROVE RD, ANESTHESIA DEPT
GREENVILLE, SC 29605
Greenville County (864) 455-7111
CRAIG DOUGLAS YOUNG PHD
Clinical Neuropsychologist
701 GROVE RD
GREENVILLE, SC 29605
Greenville County (864) 455-7000
JENNIFER WEBB GEORGE CRNA
Nurse Anesthetist, Certified Registered
701 GROVE RD
GREENVILLE, SC 29605
Greenville County (864) 455-7111
MEENU MARIE VARGHESE D.O.
Internal Medicine
701 GROVE RD, 5TH FLOOR SUPPORT TOWER
GREENVILLE, SC 29605
Greenville County (864) 455-7882
AMANDA TIPTON LARSON CRNA
Nurse Anesthetist, Certified Registered
701 GROVE RD
GREENVILLE, SC 29605
Greenville County (864) 522-2286
TYLER WITHROW
Nurse Anesthetist, Certified Registered
701 GROVE RD
GREENVILLE, SC 29605
Greenville County (864) 455-7000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Josef Williams's NPI number?

The NPI number for Josef Williams is 1811252331. It was assigned to this individual provider in the NPPES registry on July 10, 2012.

Where is Josef Williams located?

Josef Williams practices at 701 Grove Rd, Greenville, SC 29605. The listed phone number is (864) 455-7899.

What is Josef Williams's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Josef Williams enrolled in Medicare?

Yes. Josef Williams is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Josef Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Josef Williams reassigns Medicare benefits to 3 organizations: Prisma Health University Medical Group (Greenville, SC), Anmed Health (Anderson, SC) and Ich ER Services, LLC (Anderson, SC). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Josef Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Josef Williams was last updated on May 7, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.