DR. NICHOLAS ONACA (M.D.) – Transplant Surgery Physician, NPI 1043267941

DR. NICHOLAS ONACA (M.D.) is a healthcare provider. based in Fort worth, Texas. specializing in Transplant Surgery Physician. They hold the professional credentials M.D.. They hold a License No. L8869 (TX). The NPI Number for DR. NICHOLAS ONACA (M.D.) is 1043267941

Main info

Male
39 Years Of Experience
Accepts Medicare Assignment
Name
DR. NICHOLAS ONACA (M.D.)
NPI
1043267941
Phone
(817) 922-4650
Address
1400 8TH AVE
Enumeration Date
27 May 2006
Last Update Date
21 October 2014

Doctor Profile

Medical School Name
OTHER
Secondary Phone
-
Graduation Year
1987 (39 years ago)
PAC ID
6204834534
Group Practice PAC ID
1355254210
Professional Enrollment ID
I20061121000604
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for DR. NICHOLAS ONACA (M.D.)

  • Baylor Scott & White All Saints Medical Center – Fort Worth, 1400, 8th Avenue, Fairmount, Fort Worth, Tarrant County, Texas, 76104, United States

    TRANSPLANT

    FORT WORTH, TX 761044110

    Phone: (817) 922-4650

    Fax: (817) 922-4655

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2006-11-21

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20061121000604IGeneral SurgeryTXTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 76104)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 1355254210View full group profile
NameSpecialtyState
Radiation OncologyTX
Nurse PractitionerTX
Internal MedicineTX
-TX
-TX
Clinical Social WorkerTX
-TX
Nurse PractitionerTX
Orthopedic SurgeryTX
Clinical PsychologistTX

Reviews

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Frequently asked questions

What number should I use to identify DR. NICHOLAS ONACA (M.D.) for billing?
Administrative and clinical systems typically use NPI 1043267941 for DR. NICHOLAS ONACA (M.D.).
Is DR. NICHOLAS ONACA (M.D.) currently accepting referrals based on NPI status?
Registry metadata lists DR. NICHOLAS ONACA (M.D.) as active.
What does the directory say DR. NICHOLAS ONACA (M.D.) does?
Insurance directories may phrase it differently, but here DR. NICHOLAS ONACA (M.D.) maps to Transplant Surgery Physician. Clinical services aligned with this taxonomy classification.
What geographic area is tied to DR. NICHOLAS ONACA (M.D.)?
DR. NICHOLAS ONACA (M.D.) is associated with Fort Worth, Texas in the same public data insurers reference.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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