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REGINA ELAYNE WILLIAMS M.D.
NPI 1639464811
Pediatrics in Orlando, FL

Active since June 15, 2011PECOS Enrolled
78.01/100
CMS Quality Rating
601 E ROLLINS ST, ORLANDO, FL 32803(407) 975-0412 Get Directions Write a Review

NPPES record last updated: July 18, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 7, 2024, Jul 3, 2018 (2 updates tracked since 2018).

About Regina Elayne Williams M.d. NPPES

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

REGINA ELAYNE WILLIAMS M.D. (NPI 1639464811) is an individual pediatrics provider in Orlando, Florida, licensed in Florida (ME135468) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639464811
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameREGINA ELAYNE WILLIAMSCredential: M.D.
Location Address601 E ROLLINS STOrlando, FL 32803-1248
Mailing Address601 E Rollins StOrlando, FL 32803-1248 · (407) 975-0412 · Fax (407) 975-0413
Phone(407) 975-0412
Sole ProprietorNo
Enumeration DateJune 15, 2011
Last NPPES UpdateJuly 18, 20252 updates tracked since enumeration
NPPES CertifiedJuly 18, 2025
✔ NPI 1639464811 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in FL · ME135468
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedGeneral PracticeTaxonomy 208D00000X · License MDR-6193 (HI)
Also ListedHospitalistTaxonomy 208M00000X · License ME135468 (FL)
601 E ROLLINS ST, Orlando, FL 32803
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Regina Elayne Williams M.d. 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

4

Medicare enrollment records show Regina Williams reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Florida Hospital Medical Group Inc
1.8 mi
Family Medicine
1115 E RIDGEWOOD ST
Orlando, FL 32803
  • Reassigned Medicare billing, Florida enrollment
  • 3,005 clinicians in this Medicare group
NPI 1225034234 (407) 841-1100
Dlp Maria Parham Physician Practices LLC
550 mi
Psychiatry
100 HOSPITAL DR
Louisburg, NC 27549
  • Reassigned Medicare billing, North Carolina enrollment
  • 178 clinicians in this Medicare group
NPI 1467947127 (252) 436-4143
Mercy Clinic Springfield Communities
826 mi
Rural Health
9138 O'BANION ST
Birch Tree, MO 65438
  • Reassigned Medicare billing, Missouri enrollment
  • Also billed through NPI 1245277631 (Missouri)
  • 1,487 clinicians in this Medicare group
NPI 1811065477 (573) 292-3213
Hilo Benioff Medical Center
4,628 mi
General Acute Care Hospital
1190 WAIANUENUE AVE
Hilo, HI 96720
  • Reassigned Medicare billing, Hawaii enrollment
  • 263 clinicians in this Medicare group
NPI 1780757856 (808) 932-3000

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 32803 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
$87.62 typical visit price
range $56.00 – $171.84
Typical copayment $21.90 (range $14.00 – $42.96)
Most-billed visit code 99203
Established Patient
$99.16 typical visit price
range $17.57 – $139.16
Typical copayment $24.79 (range $4.39 – $34.79)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

78.01/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality57.51
Promoting Interoperability100
Improvement Activities40
Cost69.18

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.

MRS. ELIZABETH BONET CNM
Advanced Practice Midwife
601 E ROLLINS ST
ORLANDO, FL 32803
Orange County (407) 975-0406
ROLA ALTOOS MD
Radiology (Diagnostic Radiology)
601 E ROLLINS ST
ORLANDO, FL 32803
Orange County (407) 200-2355
ALBAGIR MOHAMED ALARABI M.D
Internal Medicine
601 E ROLLINS ST
ORLANDO, FL 32803
Orange County (407) 303-5600
DR. LYNN CHRISTINE PALMERI M.D.
Pediatrics (Neonatal-Perinatal Medicine)
601 E ROLLINS ST
ORLANDO, FL 32803
Orange County (407) 303-2528
DANIELLE LARSON CRNA
Nurse Anesthetist, Certified Registered
601 E ROLLINS ST
ORLANDO, FL 32803
Orange County (407) 667-0444
LANDON LICHTMAN M.D.
Emergency Medicine
601 E ROLLINS ST
ORLANDO, FL 32803
Orange County (407) 303-1940
ZAIN ZAMIR MD
Hospitalist
601 E ROLLINS ST
ORLANDO, FL 32803
Orange County (407) 652-7040
ANDREA CARSON
Pharmacist
601 E ROLLINS ST
ORLANDO, FL 32803
Orange County (941) 875-2033

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 Regina Williams's NPI number?

The NPI number for Regina Williams is 1639464811. It was assigned to this individual provider in the NPPES registry on June 15, 2011.

Where is Regina Williams located?

Regina Williams practices at 601 E Rollins St, Orlando, FL 32803. The listed phone number is (407) 975-0412.

What is Regina Williams's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Regina Williams enrolled in Medicare?

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

Which organizations bill Medicare for Regina Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Regina Williams reassigns Medicare benefits to 4 organizations: Florida Hospital Medical Group Inc (Orlando, FL), Dlp Maria Parham Physician Practices LLC (Louisburg, NC), Mercy Clinic Springfield Communities (Birch Tree, MO) and Hilo Benioff Medical Center (Hilo, HI). 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 Regina Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Regina Williams accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee and Blue Cross and Blue Shield of Kansas City and 4 other insurers list Regina Williams 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 Regina Williams was last updated on July 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.