DR. RENE ALBERT LEON (M.D.) – Allergy Physician, NPI 1639255896

DR. RENE ALBERT LEON (M.D.) is a healthcare provider. based in Fort worth, Texas. specializing in ALLERGY/IMMUNOLOGY, INTERNAL MEDICINE. They hold the professional credentials M.D.. They hold a License No. J1167 (TX). The NPI Number for DR. RENE ALBERT LEON (M.D.) is 1639255896

Main info

Male
37 Years Of Experience
Accepts Medicare Assignment
Name
DR. RENE ALBERT LEON (M.D.)
NPI
1639255896
Phone
(817) 421-0770
Address
3349 Golden Triangle Blvd
Enumeration Date
31 October 2006
Last Update Date
9 January 2024

Doctor Profile

Medical School Name
OTHER
Secondary Phone
8174210770
Graduation Year
1989 (37 years ago)
PAC ID
7719035724
Group Practice PAC ID
7719084359
Professional Enrollment ID
I20090501000035
Address ID
TX760926376SO900XXBLVD402
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience67
Completeness75
Years active:19State licenses:1Digital endpointsOther names

390 ALLERGY/IMMUNOLOGY in TX

Provider Addresses for DR. RENE ALBERT LEON (M.D.)

  • 3349 Golden Triangle Blvd

    Fort Worth, TX 761777165

    Phone: (817) 421-0770

    Fax: (817) 562-5008

    Type: Location

  • 900, East Southlake Boulevard, Southlake, Tarrant County, Texas, 76092, United States

    STE 300

    SOUTHLAKE, TX 760926376

    Phone: (817) 421-0770

    Fax: (817) 421-4759

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

CMS reports 258 Open Payments records for all available years, with a total value of $6,008.

Total Amount is formed as General ($6,008) + Research ($0) + Ownership ($0) = $6,008.

Last reported payment date: 2024-12-19 • Largest payer in this snapshot: Takeda Pharmaceuticals U.S.A., Inc. ($990).

Total Amount

$6,008

General + Research + Ownership

Payments

258

Total payment records

General Amount

$6,008

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-19

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

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: 2009-05-01

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
I20090501000035IAllergy/ImmunologyTXTBD

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
J2182Injection, mepolizumab, 1 mg14,50521$0
J2356Injection, tezepelumab-ekko, 1 mg11,34512$0
J0517Injection, benralizumab, 1 mg1,62016$0
95165Professional service for preparation and provision of 1 or more antigens1,20254$0
95004Test for allergy using allergenic extract1,03319$0
View full utilization report →

Insurance plans in this area (ZIP 76177)

Loading plans...

Provider's Procedures

DR. RENE ALBERT LEON (M.D.) performs procedures in ALLERGY/IMMUNOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
ALLERGY/IMMUNOLOGYTX95117Injection of incremental dosages of allergen, 2 or more injections14813

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: 7719084359View full group profile
NameSpecialtyState
Allergy/Immunology, Internal MedicineTX
A L L E R G Y/ I M M U N O L O G YTX

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What unique ID ties claims to DR. RENE ALBERT LEON (M.D.)?
NPI 1639255896 is assigned to DR. RENE ALBERT LEON (M.D.) under the national enumeration system.
Is DR. RENE ALBERT LEON (M.D.) currently active in the NPI registry?
CMS-published data lists DR. RENE ALBERT LEON (M.D.) as an active registrant.
Does DR. RENE ALBERT LEON (M.D.) list a primary specialty?
If you are matching referrals, note Allergy Physician for DR. RENE ALBERT LEON (M.D.). Clinical services aligned with this taxonomy classification.
Where is DR. RENE ALBERT LEON (M.D.)'s primary listing?
We display Fort Worth, Texas because that is what the record indicates for DR. RENE ALBERT LEON (M.D.).
What if Fort Worth, Texas seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

Similar Providers

DR. ROBERT J. ROGERS (M.D.)

Allergy & Immunology Physician
4200 S HULEN ST STE 230
NPI: 1619970969

Unknown Individual

Allergy Physician
5929, Lovell Avenue, Como, Fort Worth, Tarrant County, Texas, 76116, United States
NPI: 1316924509
4200 S HULEN ST STE 230
NPI: 1396722583
FT, R 42, Zieglöde, Frauenzell, Wiesent, Wörth an der Donau (VGem), Landkreis Regensburg, Bavaria, 93109, Germany
NPI: 1033181078

JOHN A FLING (MD)

Allergy Physician
FT, R 42, Zieglöde, Frauenzell, Wiesent, Wörth an der Donau (VGem), Landkreis Regensburg, Bavaria, 93109, Germany
NPI: 1487619995

DR. JAMES RUSSELL HADEN (M.D.)

Allergy & Immunology (Internal Medicine) Physician
1000, College Avenue, Fort Worth, Tarrant County, Texas, 76104, United States
NPI: 1588691125
FT, R 42, Zieglöde, Frauenzell, Wiesent, Wörth an der Donau (VGem), Landkreis Regensburg, Bavaria, 93109, Germany
NPI: 1417054024
3349 Golden Triangle Blvd
NPI: 1568545739

SWAPNIL VAIDYA (MD, PHD)

Allergy Physician
9433 N BEACH ST STE 111
NPI: 1457575615