DR. GREGORY ALAN HAMON (MD) – Surgery Physician, NPI 1225033194

DR. GREGORY ALAN HAMON (MD) is a healthcare provider. based in San antonio, Texas. specializing in GENERAL SURGERY. They hold the professional credentials MD. They hold a License No. H8107 (TX). The NPI Number for DR. GREGORY ALAN HAMON (MD) is 1225033194

Main info

Male
Sole Proprietor
37 Years Of Experience
Accepts Medicare Assignment
Name
DR. GREGORY ALAN HAMON (MD)
NPI
1225033194
Phone
(210) 627-1904
Address
1200 BROOKLYN AVE STE 150
Enumeration Date
16 June 2005
Last Update Date
4 November 2024

Doctor Profile

Medical School Name
UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Secondary Phone
2107879048
Graduation Year
1989 (37 years ago)
PAC ID
9830084482
Professional Enrollment ID
I20080320000238
Address ID
TX782553479SA24723RUNX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience83
Completeness75
Years active:20State licenses:2Digital endpointsOther names

2,644 GENERAL SURGERY in TX

Provider Addresses for DR. GREGORY ALAN HAMON (MD)

  • 1200 BROOKLYN AVE STE 150

    SAN ANTONIO, TX 782124815

    Phone: (210) 627-1904

    Fax: (210) 610-0211

    Type: Location

  • 24723 Clearwater Run

    San Antonio, TX 782553479

    Phone: (210) 627-0211

    Fax: (210) 610-0211

    Type: Location

  • 1200 Brooklyn Ave Ste 150

    San Antonio, TX 782124815

    Phone: (210) 627-1904

    Fax: (210) 610-0211

    Type: Location

  • 24723 CLEARWATER RUN

    SAN ANTONIO, TX 782553479

    Phone: (210) 787-9048

    Fax: (210) 610-0211

    Type: Mailing

  • 19016 STONE OAK PKWY STE 220

    SAN ANTONIO, TX 782583281

    Phone: (210) 627-1904

    Fax: (210) 610-0211

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 13 Open Payments records for all available years, with a total value of $895.

Total Amount is formed as General ($895) + Research ($0) + Ownership ($0) = $895.

Last reported payment date: 2024-11-07 • Largest payer in this snapshot: Davol Inc. ($454).

Total Amount

$895

General + Research + Ownership

Payments

13

Total payment records

General Amount

$895

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-07

Latest reported date

Top Companies

Largest payers in this snapshot

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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: 2008-03-20

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
I20080320000238IGeneral 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.

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

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes113104$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes6737$0
47562Removal of gallbladder using an endoscope1717$0
View full utilization report →

Insurance plans in this area (ZIP 78212)

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Reviews

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Frequently asked questions

How do payers reference DR. GREGORY ALAN HAMON (MD)?
For DR. GREGORY ALAN HAMON (MD), use NPI 1225033194 as the unique 10-digit identifier.
Active or inactive — what applies to DR. GREGORY ALAN HAMON (MD)?
You should see DR. GREGORY ALAN HAMON (MD) as active in CMS-hosted NPPES data.
What area of care is associated with DR. GREGORY ALAN HAMON (MD)?
DR. GREGORY ALAN HAMON (MD)'s record emphasizes Surgery Physician. Clinical services aligned with this taxonomy classification.
What practice footprint exists for DR. GREGORY ALAN HAMON (MD)?
Travel planning: use San Antonio, Texas as the reference point for DR. GREGORY ALAN HAMON (MD), then confirm.
When was this NPI issued?
Enumeration for DR. GREGORY ALAN HAMON (MD) is noted as June 16, 2005 where the registry provides it.

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