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CARLOS CHANG MD PA
NPI 1598795221
Internal Medicine in Tavares, FL

Active since July 05, 2006CLIA 10D1034929 · Waiver
1932 SALK AVE, TAVARES, FL 32778(352) 343-0053(352) 343-0059 Get Directions Write a Review

NPPES record last updated: June 24, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Carlos Chang Md Pa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CARLOS CHANG MD PA (NPI 1598795221) is a healthcare organization registered as an internal medicine in Tavares, Florida and active in the NPI registry since July 2006. The organization holds a CLIA Waiver certificate valid through December 15, 2026 and lists Carlos Chang, Owner, as its authorized official.

NPPES Registry Identity

NPI1598795221
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameCARLOS CHANG MD PA
Location Address1932 SALK AVETavares, FL 32778
Mailing AddressPo Box 1363Mt Dora, FL 32756 · (352) 343-0053 · Fax (352) 343-0059
Phone(352) 343-0053
Fax(352) 343-0059
Organization SubpartNo
Authorized OfficialCarlos ChangOwner · (352) 343-0053
Enumeration DateJuly 5, 2006
Last NPPES UpdateJune 24, 2008
✔ NPI 1598795221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in FL · ME71903
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Geriatric MedicineTaxonomy 207RG0300X · License ME71903 (FL)
1932 SALK AVE, Tavares, FL 32778
Open in Google Maps ↗

Other Identifiers 3

Medicare PINDC6055 RAILROADFL
Medicaid251269602FL
Medicare ID-Type UnspecifiedK6410FL · Group

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Carlos Chang Md Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Carlos Chang MD PA, which bills Medicare for the services this clinician delivers.

Clinician (1)

Carlos Chang, M.D.
Internal Medicine
NPI 1922005016
1862 MAYO DRIVE
Tavares, FL 32778
(352) 343-0053
✔ PECOS✔ Accepts Medicare0.1 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 10D1034929

Carlos Chang MD PA · Tavares, FL
Active · expires Dec 15, 2026
CLIA Number10D1034929
Laboratory TypePhysician Office
Certificate Effective DateDecember 16, 2024
Certificate Expiration DateDecember 15, 2026
Laboratory DirectorCarlos F. Chang
Laboratory Phone(352) 343-0053
Laboratory LocationCarlos Chang MD PA1862 Mayo Dr, Tavares, FL 32778
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Carlos Chang MD PA's NPI number?

The NPI number for Carlos Chang MD PA is 1598795221. It was assigned to this organization in the NPPES registry on July 5, 2006.

Where is Carlos Chang MD PA located?

Carlos Chang MD PA is located at 1932 Salk Ave, Tavares, FL 32778. The listed phone number is (352) 343-0053.

What is Carlos Chang MD PA's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Carlos Chang MD PA enrolled in Medicare?

Yes. Carlos Chang MD PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Carlos Chang MD PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Carlos Chang MD PA. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Carlos Chang MD PA hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 10D1034929) is associated with this NPI, valid through December 15, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Carlos Chang MD PA was last updated on June 24, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.