LEWIS TSAI – Family Medicine Physician, NPI 1538620810

LEWIS TSAI is a healthcare provider. based in Galveston, Texas. specializing in FAMILY PRACTICE. They hold a License No. V2584 (TX). The NPI Number for LEWIS TSAI is 1538620810

Main info

Male
Sole Proprietor
7 Years Of Experience
Accepts Medicare Assignment
Name
LEWIS TSAI
NPI
1538620810
Phone
(409) 772-2166
Address
301 UNIVERSITY BLVD
Enumeration Date
28 March 2019
Last Update Date
8 January 2026

Doctor Profile

Medical School Name
TEXAS A & M UNIVERSITY SYSTEM, HSC, COLLEGE OF MEDICINE
Secondary Phone
5128355577
Graduation Year
2019 (7 years ago)
PAC ID
2769811280
Group Practice PAC ID
6305149121
Professional Enrollment ID
I20240822004663
Address ID
TX787582427AU12319BXXX600
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience43
Completeness85
Years active:7State licenses:1Digital endpointsOther names

8,705 FAMILY PRACTICE in TX

Loading map...

Provider Addresses for LEWIS TSAI

  • 301 UNIVERSITY BLVD

    GALVESTON, TX 775551120

    Phone: (409) 772-2166

    Fax: (409) 772-2663

    Type: Mailing

  • 400, Harborside Drive, Galveston, Galveston County, Texas, 77550, United States

    GALVESTON, TX 775551120

    Phone: (409) 772-2166

    Fax: (409) 772-2663

    Type: Location

  • 7200 WYOMING SPRINGS DR STE 600

    ROUND ROCK, TX 786814305

    Phone: (512) 244-1995

    Fax: (877) 215-6813

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

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: 2024-08-22

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
I20240822004663IFamily PracticeTXTBD

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 77555)

Loading plans...

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: 6305149121View full group profile

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 LEWIS TSAI?
NPI 1538620810 is assigned to LEWIS TSAI under the national enumeration system.
Is LEWIS TSAI currently active in the NPI registry?
CMS-published data lists LEWIS TSAI as an active registrant.
What kind of provider is LEWIS TSAI?
The page reflects Family Medicine Physician for LEWIS TSAI. Clinical services aligned with this taxonomy classification.
Does LEWIS TSAI practice in Texas?
You will see Galveston, Texas on file for LEWIS TSAI alongside any extra practice locations.
What if Galveston, Texas seems incomplete?
Street-level detail can be omitted — open the full address list for this NPI.

Similar Providers

DR. SUSAN KAY EASLEY (M.D.)

Family Medicine Physician
609, Constellation Boulevard, League City, Galveston County, Texas, 77573, United States
NPI: 1639170202

DR. CARLOS M QUINONES (M.D.)

Family Medicine Physician
1915, Blue Quail Drive, West Ranch, Friendswood, Galveston County, Texas, 77546, United States
NPI: 1326027392

DR. GENE LEE DOWELL (M.D.)

Aerospace Medicine Physician
6500 E BAY BLVD
NPI: 1225017106

DR. DAVID J PICKEN (M.D.)

Family Medicine Physician
500 ALA MOANA BLVD STE 230
NPI: 1568433795
301, University Boulevard - 6th Street, Galveston, Galveston County, Texas, 77550, United States
NPI: 1497726459

DR. SEAN A HOLLONBECK (M.D.)

Family Medicine Physician
1615, Winnie Street - Avenue G, Galveston, Galveston County, Texas, 77550, United States
NPI: 1811962368
301 UNIVERSITY BLVD
NPI: 1477503605
301 University Blvd
NPI: 1285686154