NPPES file of Aug 9, 2026

Mark A. Mazzare, M.D.

Internal Medicine Physician · Tyler, TX

Mark A. Mazzare, M.D. is an internal medicine physician with a practice address in Tyler, Texas, and NPI 1891769709, issued on Feb 15, 2006. Check the license (Texas K3331, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891769709
Name
Mark A. Mazzare
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
K3331 TX
Self-reported in NPPES; status is on the state search
Practice location
5380 Old Bullard RD Ste 600-357, Tyler, TX 75703
Phone
(888) 316-5498
Enumerated
Feb 15, 2006
Record last updated
Oct 24, 2023
Fax
(888) 979-6378
Medicaid ID
127039910 TX
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →

Verify Mark A. Mazzare in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license K3331    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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46% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,725 Medicare Part D claims for 90 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Mark Mazzare1,725
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium95 claims
  2. Atorvastatin Calcium65 claims
  3. Metformin Hcl61 claims
  4. Gabapentin57 claims
  5. Furosemide52 claims
  6. Losartan Potassium52 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Mark A. Mazzare among 9,175 internal medicine physician records in Texas

Mark A. Mazzare, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 59% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2023 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

146 internal medicine physician records list a practice address in Tyler

They are 146 of the 5,531 NPPES records with a practice address in Tyler, and 9,175 internal medicine physician records in Texas.

All 9,175 in Texas → Every provider in Tyler → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Ball, M.D.Tyler, TX 757031144329087
  2. Mary Dene, MDTyler, TX 757031669411849
  3. Kimberly Eakin Wegener, M.D.Tyler, TX 757031750344966
  4. Kurtis Kostan, MDTyler, TX 757031134516172
  5. Kevin May, M.D.Tyler, TX 757031245339183
  6. Hailegiorgis Woldegiorgis, MDTyler, TX 757031841559309
  7. Melissa Almodovar-Irizarry, M.D.Tyler, TX 757021639594047
  8. Matthew Boehme, D.O.Tyler, TX 757021215460183

Common questions

What is Mark A. Mazzare, M.D.'s NPI number?

Mark A. Mazzare, M.D.'s National Provider Identifier (NPI) is 1891769709, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Mazzare, M.D. located?

The NPPES record lists a practice address at 5380 Old Bullard RD Ste 600-357, Tyler, TX, 75703. Phone: (888) 316-5498. Providers update this record themselves, so call before visiting.

How can I verify Mark A. Mazzare, M.D.'s license?

NPPES lists Texas license number K3331, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark A. Mazzare, M.D. prescribe under Medicare Part D?

In 2024, Mark A. Mazzare, M.D. had 1,725 Medicare Part D claims for 90 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.