DR. JOSEPH R. HOLAHAN (M.D.) – Hematology (Internal Medicine) Physician, NPI 1114942414

DR. JOSEPH R. HOLAHAN (M.D.) is a healthcare provider. based in San antonio, Texas. specializing in Hematology (Internal Medicine) Physician. They hold the professional credentials M.D.. They hold a License No. E9236 (TX). The NPI Number for DR. JOSEPH R. HOLAHAN (M.D.) is 1114942414

Main info

Male
53 Years Of Experience
Accepts Medicare Assignment
Name
DR. JOSEPH R. HOLAHAN (M.D.)
NPI
1114942414
Phone
(210) 593-2584
Address
4383 MEDICAL DR
Enumeration Date
13 July 2006
Last Update Date
14 February 2020

Doctor Profile

Medical School Name
UNIVERSITY OF FLORIDA COLLEGE OF MEDICINE
Secondary Phone
2105935700
Graduation Year
1973 (53 years ago)
PAC ID
1759448111
Group Practice PAC ID
4486618022
Professional Enrollment ID
I20091228000081
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience62
Completeness75
Years active:19State licenses:1Digital endpointsOther names

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Provider Addresses for DR. JOSEPH R. HOLAHAN (M.D.)

  • 4383, Medical Drive, South Texas Medical Center, San Antonio, Bexar County, Texas, 78229, United States

    SAN ANTONIO, TX 782293307

    Phone: (210) 593-2584

    Fax: (210) 593-5992

    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)

CMS reports 43 Open Payments records for all available years, with a total value of $978.

Total Amount is formed as General ($978) + Research ($0) + Ownership ($0) = $978.

Last reported payment date: 2024-12-13 • Largest payer in this snapshot: Rigel Pharmaceuticals, Inc. ($136).

Total Amount

$978

General + Research + Ownership

Payments

43

Total payment records

General Amount

$978

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-13

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: 2009-12-28

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
I20091228000081IHematologyTXTBD

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
85025Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count23090$0
80053Blood test, comprehensive group of blood chemicals209102$0
36415Insertion of needle into vein for collection of blood sample19599$0
99214Established patient office or other outpatient visit, 30-39 minutes16594$0
83615Lactate dehydrogenase (enzyme) level15690$0
View full utilization report →

Insurance plans in this area (ZIP 78229)

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Provider's Procedures

DR. JOSEPH R. HOLAHAN (M.D.) performs procedures in Hematology (Internal Medicine) Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
HEMATOLOGYTX96375Injection of different drug or substance into a vein for therapy, diagnosis, or prevention9518
HEMATOLOGYTX96415Infusion of chemotherapy into a vein15814

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: 4486618022View full group profile
NameSpecialtyState
H E M A T O L O G Y/ O N C O L O G YTX
-TX
Medical OncologyTX
Surgical Oncology, General SurgeryTX
-TX
General SurgeryTX
Gynecological Oncology, Obstetrics/GynecologyNY
Medical Oncology, Internal MedicineTX
Medical OncologyTX
Gynecological OncologyTX

Reviews

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Frequently asked questions

How is DR. JOSEPH R. HOLAHAN (M.D.) identified in CMS data?
CMS-hosted NPPES data lists DR. JOSEPH R. HOLAHAN (M.D.) with NPI 1114942414.
Is DR. JOSEPH R. HOLAHAN (M.D.) still practicing?
DR. JOSEPH R. HOLAHAN (M.D.) is currently listed as active in the public NPI registry.
What is DR. JOSEPH R. HOLAHAN (M.D.) best known for clinically?
Directory data describes DR. JOSEPH R. HOLAHAN (M.D.) with Hematology (Internal Medicine) Physician. Clinical services aligned with this taxonomy classification.
Where should I expect DR. JOSEPH R. HOLAHAN (M.D.) on a map?
Expect San Antonio, Texas as a primary anchor for DR. JOSEPH R. HOLAHAN (M.D.) unless the record lists multiple sites.
Why does DR. JOSEPH R. HOLAHAN (M.D.) have multiple addresses?
2 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

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