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DR. WILLIAM LOGAN RILEY MD
NPI 1366948218
Obstetrics & Gynecology - Maternal & Fetal Medicine in Atlanta, GA

Active since March 31, 2018PECOS Enrolled
1000 JOHNSON FY RD NE, ATLANTA, GA 30342(404) 303-7647 Get Directions Write a Review

NPPES record last updated: April 8, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 8, 2026, Mar 31, 2018 (2 updates tracked since 2018).

About Dr. William Logan Riley Md NPPES

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

DR. WILLIAM LOGAN RILEY MD (NPI 1366948218) is an individual maternal & fetal medicine provider in Atlanta, Georgia, licensed in Georgia (103531) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and maintains a secondary practice location in Knoxville.

NPPES Registry Identity

NPI1366948218
Entity TypeIndividualMale
Primary Taxonomy207VM0101X
Provider Legal NameDR. WILLIAM LOGAN RILEYCredential: MD
Location Address1000 JOHNSON FY RD NEAtlanta, GA 30342-1606
Mailing Address1000 Johnson Fy Rd NeAtlanta, GA 30342-1606 · (404) 303-7647
Phone(404) 303-7647
Sole ProprietorNo
Enumeration DateMarch 31, 2018
Last NPPES UpdateApril 8, 20262 updates tracked since enumeration
NPPES CertifiedApril 8, 2026
✔ NPI 1366948218 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
License✔ Licensed in GA · 103531
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License 65689 (TN)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1000 JOHNSON FY RD NE, Atlanta, GA 30342
Open in Google Maps ↗

Secondary Practice Location 1

Location 11924 Alcoa HwyKnoxville, TN 37920-1511 · Phone (865) 305-8787 · Fax (865) 305-8261

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William Logan Riley Md 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 Reassignment

Medicare enrollment records show William Riley reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Tennessee
142 mi
Multi-Specialty
1928 ALCOA HWY, BUILDING B, SUITE 127
Knoxville, TN 37920
  • Reassigned Medicare billing, Tennessee enrollment
  • 95 clinicians in this Medicare group
NPI 1295751386 (865) 544-8787

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30342 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
$130.64 typical visit price
range $56.84 – $172.43
Typical copayment $32.66 (range $14.21 – $43.10)
Most-billed visit code 99204
Established Patient
$70.85 typical visit price
range $18.22 – $140.40
Typical copayment $17.71 (range $4.55 – $35.10)
Most-billed visit code 99213
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.

APRIL LYNN HITCH CNM
Midwife
1000 JOHNSON FY RD NE
ATLANTA, GA 30342
Fulton County (404) 303-1224
DR. SARAH BROOKS RODGERS M.D.
Pathology (Anatomic Pathology)
1000 JOHNSON FY RD NE
ATLANTA, GA 30342
Fulton County (770) 458-6101
STEFFIN BLAINE GOLDEN MD
Anesthesiology
1000 JOHNSON FY RD NE
ATLANTA, GA 30342
Fulton County (404) 851-8000
UROLOGICAL PROFESSIONAL SERVICES, LLC
Urology
1000 JOHNSON FY RD NE
ATLANTA, GA 30342
Fulton County (855) 709-4535
CARLOS EDUARDO GARCIA OCASIO MD
Psychiatry & Neurology (Neurology)
1000 JOHNSON FY RD NE
ATLANTA, GA 30342
Fulton County (404) 851-8000
KELLI MCCRUM PHARMD
Pharmacist (Oncology)
1000 JOHNSON FY RD NE
ATLANTA, GA 30342
Fulton County (678) 654-1882
STACI C HOFIUS CRNA
Nurse Anesthetist, Certified Registered
1000 JOHNSON FY RD NE
ATLANTA, GA 30342
Fulton County (404) 851-8000
JIAWEN LI
Dietitian, Registered
1000 JOHNSON FY RD NE
ATLANTA, GA 30342
Fulton County (530) 601-3637

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 William Riley's NPI number?

The NPI number for William Riley is 1366948218. It was assigned to this individual provider in the NPPES registry on March 31, 2018.

Where is William Riley located?

William Riley practices at 1000 Johnson Fy Rd NE, Atlanta, GA 30342. The listed phone number is (404) 303-7647.

What is William Riley's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is William Riley enrolled in Medicare?

Yes. William Riley is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Riley's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Riley reassigns Medicare benefits to University Of Tennessee (Knoxville, TN). The 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 William Riley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Riley accept?

Health plans from Oscar Health list William Riley as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Riley was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.