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TANYA L DUNCAN-WILLIAMS AA-C
NPI 1336133271
Anesthesiologist Assistant in Riverview, FL

Active since September 07, 2005Accepts Medicare Assignment
6901 SIMMONS LOOP, RIVERVIEW, FL 33578(813) 870-4015 Get Directions Write a Review

NPPES record last updated: March 30, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 30, 2026, Dec 22, 2025, Jun 13, 2024 and 1 more (4 updates tracked since 2022).

About Tanya L Duncan-williams Aa-c NPPES

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

TANYA L DUNCAN-WILLIAMS AA-C (NPI 1336133271) is an individual anesthesiologist assistant in Riverview, Florida, licensed in Florida (AA730) and active in the NPI registry since September 2005. She is affiliated with St Josephs Hospital and is a graduate of Other (2022).

NPPES Registry Identity

NPI1336133271
Entity TypeIndividualFemale
Primary Taxonomy367H00000X
Provider Legal NameTANYA L DUNCAN-WILLIAMSCredential: AA-C
Location Address6901 SIMMONS LOOPRiverview, FL 33578-9498
Mailing Address2995 Drew StClearwater, FL 33759-3012 · (727) 315-7496
Phone(813) 870-4015
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateSeptember 7, 2005
Last NPPES UpdateMarch 30, 20264 updates tracked since enumeration
NPPES CertifiedMarch 30, 2026
✔ NPI 1336133271 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367H00000X
License✔ Licensed in FL · AA730
Definition
An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.
6901 SIMMONS LOOP, Riverview, FL 33578
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, Oscar Health Maintenance Organization of Florida, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Tanya L Duncan-williams Aa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6709864028
PECOS Enrollment IDI20221201002133

Medicare Billing Reassignments

4

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

Baycare Medical Group, Inc.
26 mi
General Practice
2995 DREW ST FL 2
Clearwater, FL 33759
  • Reassigned Medicare billing, Florida enrollment
  • 2,009 clinicians in this Medicare group
NPI 1043269871 (727) 281-9065
Amsol Anesthetists Of Georgia LLC-Hughston Surgical Center
362 mi
Nurse Anesthetist, Certified Registered
6262B VETERANS PKWY
Columbus, GA 31909
  • Reassigned Medicare billing, Georgia enrollment
  • Medicare enrollment name: Amsol Anesthetists Of Georgia, LLC
  • 110 clinicians in this Medicare group
NPI 1164708400 (706) 494-3434
Sentry Anesthesia Management, LLC
412 mi
Anesthesiology
80 NEWNAN STATION DR, SUITE A
Newnan, GA 30265
  • Reassigned Medicare billing, Georgia enrollment
  • 729 clinicians in this Medicare group
NPI 1134544794 (770) 251-2060
American Anesthesiology Services Of Florida, Inc.
1,030 mi
Anesthesiology
1305 WALT WHITMAN RD STE 300
Melville, NY 11747
  • Reassigned Medicare billing, Florida enrollment
  • 628 clinicians in this Medicare group
NPI 1508318387 (516) 945-3000

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 2

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.

Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 01810
Anesthesia for procedures on the forearm, wrist, and hand involves administering medication to block sensation in these areas. This helps ensure comfort and painlessness during surgeries or treatments involving nerves, muscles, tendons, and tissue in these regions.
17 services16 patients
Anesthesia for other procedure on top of arm bone and shoulder joint 01630
Anesthesia for a procedure on the arm bone or shoulder joint involves using medication to numb the area or make you unconscious during surgery. This ensures you feel no pain during the procedure. It's a common and safe practice in medical surgeries.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Josephs Hospital

Acute Care Hospitals · Tampa, FL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number100075
Location3001 W Martin Luther King Jr BlvdTampa, FL 33677 · Hillsborough County
Emergency services Birthing friendly

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.

MIRIAM ROSA HEADLEY
Registered Nurse (Infection Control)
6901 SIMMONS LOOP
RIVERVIEW, FL 33578
Hillsborough County (813) 302-8021
MS. MELISSA MARIE CLINTON PA-C
Physician Assistant (Surgical)
6901 SIMMONS LOOP
RIVERVIEW, FL 33578
Hillsborough County (813) 302-8070
DR. BRENDAN RAJESH MALIK M.D.
Internal Medicine
6901 SIMMONS LOOP
RIVERVIEW, FL 33578
Hillsborough County (813) 302-8388
KIMBERLY HAVERS ARNP
Nurse Practitioner
6901 SIMMONS LOOP
RIVERVIEW, FL 33578
Hillsborough County (813) 302-8400
TAYLOR MACKENZIE LUTHRINGER
Pharmacist
6901 SIMMONS LOOP
RIVERVIEW, FL 33578
Hillsborough County (813) 302-8000
SAUD MUTHANNA SHAKIR AL-EZZI MD
Student in an Organized Health Care Education/Training Program
6901 SIMMONS LOOP
RIVERVIEW, FL 33578
Hillsborough County (813) 302-8766
MS. MONIQUE ANNE FELCENLOBEN M.D.
Student in an Organized Health Care Education/Training Program
6901 SIMMONS LOOP
RIVERVIEW, FL 33578
Hillsborough County (813) 302-8766
DR. DOMENIC JAMES PULITO DO
Anesthesiology
6901 SIMMONS LOOP
RIVERVIEW, FL 33578
Hillsborough County (813) 870-4015

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 Tanya Duncan-williams's NPI number?

The NPI number for Tanya Duncan-williams is 1336133271. It was assigned to this individual provider in the NPPES registry on September 7, 2005.

Where is Tanya Duncan-williams located?

Tanya Duncan-williams practices at 6901 Simmons Loop, Riverview, FL 33578. The listed phone number is (813) 870-4015.

What is Tanya Duncan-williams's specialty?

The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.

Is Tanya Duncan-williams enrolled in Medicare?

Yes. Tanya Duncan-williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Tanya Duncan-williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tanya Duncan-williams reassigns Medicare benefits to 4 organizations: Baycare Medical Group, Inc. (Clearwater, FL), Amsol Anesthetists Of Georgia LLC-Hughston Surgical Center (Columbus, GA), Sentry Anesthesia Management, LLC (Newnan, GA) and American Anesthesiology Services Of Florida, Inc. (Melville, NY). 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 Tanya Duncan-williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tanya Duncan-williams accept?

Health plans from Oscar Health, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list Tanya Duncan-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.

Is Tanya Duncan-williams affiliated with any hospitals?

According to CMS data, Tanya Duncan-williams is affiliated with St Josephs Hospital.

When was this NPI record last updated?

The NPPES record for Tanya Duncan-williams was last updated on March 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.