Dr. Mark A Mazzare , MD
Internal Medicine • Tyler, TX
5380 Old Bullard Rd Ste 600-357
Tyler, TX 757033607
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Mark Mazzare is listed in NPPES under Internal Medicine.
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NPI assigned on February 15, 2006; this date does not establish years in practice.
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Published CMS data list 289,340 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- K1034 — Provision of covid-19 test, nonprescription self-administered and self-collected use, fda approved, authorized or cleared, one test count: 288,825 service units.
- 99458 — Management using the results of remote vital sign monitoring per calendar month: 103 service units.
- 99457 — Management using the results of remote vital sign monitoring per calendar month: 86 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See all 11 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 1,238 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Levothyroxine Sodium — 95 prescription fills, including refills.
- Atorvastatin Calcium — 65 prescription fills, including refills.
- Metformin Hcl — 61 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 43 records in the table · Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 65% of clinicians listed under Internal Medicine in Tyler, TX (2024, 94 clinicians with data). Median for this group: 292. Middle half: 119 to 3,691.
Close to the middle for Part D prescriptions among clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: 828. Middle half: 121 to 4,824.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 2,023 in 2019 to 289,340 in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019–2023.
Practice Location & Contact Primary Location
5380 Old Bullard Rd Ste 600-357
Tyler, TX 757033607
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $3,427,521 in 2023
The total amount Medicare approved for these services in 2023. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023.
Paid by Medicare
About $3,420,192 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023.
30-day fills
1,454 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$93,651 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Tyler and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Internal Medicine in Tyler, TX (2024, 94 clinicians with data). Median for this group: 292. Middle half: 119 to 3,691.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: 828. Middle half: 121 to 4,824.
Part D drug cost
A higher Part D drug cost than 65% of clinicians listed under Internal Medicine in Tyler, TX (2024, 94 clinicians with data). Median for this group: $12,853. Middle half: $1,345 to $208,355.
Close to the middle for clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: $64,859. Middle half: $4,211 to $436,775.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Mazzare are from 2023.
146 active clinicians are listed under Internal Medicine with a practice address in Tyler, TX (9,191 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Tyler
9.6% of these 146 clinicians have the CMS telehealth indicator.
67.8% of these 146 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 14203% from 2,023 in 2019 to 289,340 in 2023.
- 2019: 2,023
- 2020: 1,972
- 2021: 1,294
- 2022: 4,819
- 2023: 289,340
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Medicare-allowed amount
Medicare-allowed amount increased 2386% from $137,857 in 2019 to $3,427,521 in 2023.
- 2019: $137,857
- 2020: $133,550
- 2021: $87,258
- 2022: $90,425
- 2023: $3,427,521
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Paid by Medicare
Paid by Medicare increased 3224% from $102,891 in 2019 to $3,420,192 in 2023.
- 2019: $102,891
- 2020: $100,086
- 2021: $64,497
- 2022: $79,982
- 2023: $3,420,192
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 70% from 4,183 in 2020 to 1,238 in 2024.
- 2020: 4,183
- 2021: 4,089
- 2022: 3,285
- 2023: 3,521
- 2024: 1,238
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30-day fills
30-day fills decreased 66% from 4,261 in 2020 to 1,454 in 2024.
- 2020: 4,261
- 2021: 4,138
- 2022: 3,329
- 2023: 3,643
- 2024: 1,454
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Part D drug cost
Part D drug cost decreased 70% from $313,193 in 2020 to $93,651 in 2024.
- 2020: $313,193
- 2021: $267,763
- 2022: $127,534
- 2023: $177,986
- 2024: $93,651
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2022 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2023; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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K1034
Provision of covid-19 test, nonprescription self-administered and self-collected use, fda approved, authorized or cleared, one test count
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288,825 | 19,249 | $12.00 | $11.76 |
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99458
Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes
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103 | 32 | $86.53 | $38.30 |
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99457
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes
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86 | 38 | $108.38 | $47.11 |
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99439
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month
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74 | 18 | $102.43 | $45.89 |
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99348
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes
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65 | 21 | $165.00 | $73.68 |
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99454
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days
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48 | 19 | $115.38 | $47.97 |
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99349
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes
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45 | 14 | $250.00 | $123.02 |
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99490
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
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37 | 18 | $117.57 | $60.59 |
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96127
Assessment of emotional or behavioral problems
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22 | 15 | $9.00 | $4.43 |
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99310
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
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22 | 21 | $260.00 | $147.63 |
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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13 | 13 | $175.00 | $102.47 |
Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Levothyroxine Sodium | Levothyroxine Sodium | 95 | 3,387 | $1,405.72 | 18 |
| Atorvastatin Calcium | Atorvastatin Calcium | 65 | 2,460 | $746.05 | 13 |
| Metformin Hcl | Metformin Hcl | 61 | 1,114 | $352.80 | — |
| Gabapentin | Gabapentin | 57 | 1,995 | $776.07 | 13 |
| Furosemide | Furosemide | 52 | 1,647 | $344.72 | — |
| Losartan Potassium | Losartan Potassium | 52 | 2,028 | $675.35 | 12 |
| Omeprazole | Omeprazole | 48 | 1,446 | $521.96 | — |
| Memantine Hcl | Memantine Hcl | 44 | 1,305 | $2,105.71 | — |
| Clopidogrel | Clopidogrel Bisulfate | 38 | 1,590 | $519.95 | — |
| Potassium Chloride | Potassium Chloride | 38 | 1,501 | $850.77 | — |
| Jardiance | Empagliflozin | 36 | 1,068 | $21,578.17 | — |
| Amlodipine Besylate | Amlodipine Besylate | 34 | 1,527 | $344.13 | — |
| Carvedilol | Carvedilol | 34 | 1,162 | $490.80 | — |
| Pantoprazole Sodium | Pantoprazole Sodium | 31 | 1,230 | $556.10 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 31 | 884 | $305.07 | — |
| Eliquis | Apixaban | 31 | 858 | $16,595.79 | — |
| Montelukast Sodium | Montelukast Sodium | 30 | 1,082 | $299.49 | — |
| Sertraline Hcl | Sertraline Hcl | 29 | 1,004 | $372.23 | — |
| Lisinopril | Lisinopril | 27 | 1,035 | $227.65 | — |
| Mirtazapine | Mirtazapine | 27 | 1,050 | $345.91 | — |
| Famotidine | Famotidine | 26 | 786 | $232.50 | — |
| Donepezil Hcl | Donepezil Hcl | 25 | 720 | $283.91 | — |
| Tizanidine Hcl | Tizanidine Hcl | 23 | 720 | $370.57 | — |
| Allopurinol | Allopurinol | 22 | 644 | $200.24 | — |
| Simvastatin | Simvastatin | 21 | 636 | $240.00 | — |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2023-10-24NUCC Taxonomy Code: 207R00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 5380 OLD BULLARD RD STE 600-357, TYLER, TX 757033607 (Tel: 9032453242)
Registered at 5380 OLD BULLARD RD STE 600-357, TYLER, TX 757033607 (Tel: 9032453242)
Recorded as MARK MAZZARE, M.D.
Internal Medicine (license number reported to NPPES: TX K3331)
NPI status registered as active in NPPES database
Registered at 1000 S BECKHAM AVE, TYLER, TX 757011908 (Tel: 9032453242)
Registered at 5380 OLD BULLARD RD STE 600-357, TYLER, TX 757033607 (Tel: 9032453242)
Recorded as MARK MAZZARE, M.D.
Internal Medicine (license number reported to NPPES: TX K3331)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Tyler
- Dr. Mestawet Teka, MD
- Dr. Esmael Yimer, MD
- Dr. Devin Haney, DO
- Dr. Nadyn Giralt Rodriguez, MD
- Dr. Rajiv Bhattarai, MD
- Dr. Ellen Walraven, MD
Mailing Address
5380 Old Bullard Rd Ste 600-357
Tyler, TX 757033607
Phone: 8883165498