Dr. Jonathan R Klocek , MD
Internal Medicine โข Austin, TX
1004 W 32nd St Ste 400
Austin, TX 787051915
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. Jonathan Klocek is listed in NPPES under Internal Medicine.
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NPI assigned on January 19, 2006; this date does not establish years in practice.
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Published CMS data list 8,672 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 36415 โ Insertion of needle into vein for collection of blood sample: 645 service units.
- 80053 โ Blood test, comprehensive group of blood chemicals: 551 service units.
- 85025 โ Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count: 542 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 48 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 2,325 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Rosuvastatin Calcium โ 191 prescription fills, including refills.
- Atorvastatin Calcium โ 184 prescription fills, including refills.
- Levothyroxine Sodium โ 175 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 61 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Austin, TX (2024, 299 clinicians with data). Median for this group: 278. Middle half: 56 to 2,862.
More Part D prescriptions than 60% of 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 โ by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 11,443 in 2019 to 8,672 in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2019โ2023.
Practice Location & Contact Primary Location
1004 W 32nd St Ste 400
Austin, TX 787051915
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 $169,420 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 โ by Provider and Service, 2023.
Paid by Medicare
About $142,091 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 โ by Provider and Service, 2023.
30-day fills
5,483 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
$81,931 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $64.78 across 3 records.
By nature of payment
- Food and Beverage: $64.78 across 3 records.
Reporting-company totals
- Abbott Laboratories: $48.71 across 2 records.
- Eli Lilly and Company: $16.07 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
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, โDoes your provider accept Medicare as full payment?โ
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.
Can order Medicare-covered services
CMS lists Dr. Klocek as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Austin and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Austin, TX (2024, 299 clinicians with data). Median for this group: 278. Middle half: 56 to 2,862.
More Part D prescriptions than 60% of 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 Austin, TX (2024, 299 clinicians with data). Median for this group: $16,522. Middle half: $774 to $198,601.
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. Klocek are from 2023.
607 active clinicians are listed under Internal Medicine with a practice address in Austin, TX (9,191 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Austin
16.5% of these 607 clinicians have the CMS telehealth indicator.
46.1% of these 607 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 decreased 24% from 11,443 in 2019 to 8,672 in 2023.
- 2019: 11,443
- 2020: 11,426
- 2021: 12,007
- 2022: 11,871
- 2023: 8,672
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Medicare-allowed amount
Medicare-allowed amount decreased 34% from $256,568 in 2019 to $169,420 in 2023.
- 2019: $256,568
- 2020: $271,594
- 2021: $273,639
- 2022: $256,188
- 2023: $169,420
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Paid by Medicare
Paid by Medicare decreased 34% from $214,672 in 2019 to $142,091 in 2023.
- 2019: $214,672
- 2020: $227,695
- 2021: $227,231
- 2022: $210,721
- 2023: $142,091
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 79% from 11,198 in 2020 to 2,325 in 2024.
- 2020: 11,198
- 2021: 11,518
- 2022: 11,282
- 2023: 10,903
- 2024: 2,325
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30-day fills
30-day fills decreased 76% from 22,635 in 2020 to 5,483 in 2024.
- 2020: 22,635
- 2021: 24,270
- 2022: 24,279
- 2023: 23,168
- 2024: 5,483
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Part D drug cost
Part D drug cost decreased 81% from $428,038 in 2020 to $81,931 in 2024.
- 2020: $428,038
- 2021: $511,549
- 2022: $497,101
- 2023: $582,113
- 2024: $81,931
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $81.66 in 2021 to $64.78 in 2025.
- 2021: $81.66
- 2022: $343.97
- 2023: $713.96
- 2024: $258.02
- 2025: $64.78
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $64.78.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
FREESTYLE LIBRE 3 | General | $33.24 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $16.07 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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FREESTYLE LIBRE 3 | General | $15.47 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2022 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 โ by Provider and Service data, 2017โ2023; 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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36415
Insertion of needle into vein for collection of blood sample
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645 | 448 | $16.00 | $8.40 |
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80053
Blood test, comprehensive group of blood chemicals
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551 | 425 | $54.00 | $10.33 |
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85025
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
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542 | 423 | $36.00 | $7.61 |
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80061
Blood test, lipids (cholesterol and triglycerides)
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519 | 419 | $73.00 | $13.09 |
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83615
Lactate dehydrogenase (enzyme) level
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476 | 398 | $25.00 | $5.91 |
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84550
Uric acid level, blood
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475 | 399 | $22.00 | $4.42 |
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84443
Blood test, thyroid stimulating hormone (tsh)
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468 | 407 | $98.00 | $16.46 |
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82977
Glutamyltransferase (liver enzyme) level
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466 | 393 | $30.00 | $7.04 |
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82550
Creatine kinase (cardiac enzyme) level, total
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413 | 343 | $32.00 | $6.38 |
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81003
Automated urinalysis test
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385 | 364 | $19.00 | $2.20 |
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71046
X-ray of chest, 2 views
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365 | 347 | $43.00 | $24.72 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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362 | 351 | $78.00 | $14.65 |
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G0444
Annual depression screening, 5 to 15 minutes
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358 | 358 | $30.00 | $18.81 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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357 | 264 | $175.00 | $128.23 |
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82306
Vitamin d-3 level
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242 | 220 | $120.00 | $28.89 |
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82607
Cyanocobalamin (vitamin b-12) level
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226 | 201 | $100.00 | $14.78 |
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83036
Hemoglobin a1c level
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207 | 162 | $42.00 | $9.52 |
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83550
Iron binding capacity
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189 | 162 | $38.00 | $8.57 |
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83735
Magnesium level
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187 | 171 | $40.00 | $6.57 |
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90662
Influenza vaccine split virus, preservative free
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134 | 134 | $72.31 | $69.09 |
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G0008
Administration of influenza virus vaccine
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134 | 134 | $35.00 | $30.91 |
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83540
Iron level
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127 | 116 | $28.00 | $6.34 |
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G0103
Prostate cancer screening; prostate specific antigen test (psa)
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116 | 116 | $85.00 | $18.92 |
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84153
Psa (prostate specific antigen) measurement, total
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109 | 94 | $85.00 | $18.02 |
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84439
Thyroxine (thyroid chemical), free
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107 | 91 | $39.00 | $8.84 |
(top 25 shown)
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 |
|---|---|---|---|---|---|
| Rosuvastatin Calcium | Rosuvastatin Calcium | 191 | 15,204 | $2,370.11 | 100 |
| Atorvastatin Calcium | Atorvastatin Calcium | 184 | 14,140 | $1,771.50 | 104 |
| Levothyroxine Sodium | Levothyroxine Sodium | 175 | 14,047 | $2,206.53 | 90 |
| Amlodipine Besylate | Amlodipine Besylate | 112 | 8,676 | $891.11 | 63 |
| Trazodone Hcl | Trazodone Hcl | 82 | 4,660 | $1,089.78 | 33 |
| Losartan Potassium | Losartan Potassium | 69 | 5,550 | $788.98 | 35 |
| Pantoprazole Sodium | Pantoprazole Sodium | 69 | 5,310 | $983.89 | 34 |
| Metoprolol Succinate | Metoprolol Succinate | 58 | 4,072 | $758.92 | 29 |
| Omeprazole | Omeprazole | 53 | 4,170 | $731.26 | 29 |
| Fluticasone Propionate | Fluticasone Propionate | 51 | 2,550 | $696.02 | 19 |
| Lisinopril | Lisinopril | 50 | 3,952 | $417.12 | 30 |
| Gabapentin | Gabapentin | 48 | 2,241 | $627.29 | 15 |
| Hydrochlorothiazide | Hydrochlorothiazide | 48 | 4,020 | $169.02 | 29 |
| Potassium Chloride | Potassium Chloride | 48 | 2,677 | $796.68 | 16 |
| Alprazolam | Alprazolam | 46 | 1,296 | $229.48 | 25 |
| Zolpidem Tartrate | Zolpidem Tartrate | 46 | 1,980 | $446.18 | 22 |
| Simvastatin | Simvastatin | 43 | 3,750 | $453.06 | 29 |
| Metformin Hcl Er | Metformin Hcl | 43 | 3,570 | $647.44 | 28 |
| Celecoxib | Celecoxib | 41 | 2,220 | $778.91 | 20 |
| Alendronate Sodium | Alendronate Sodium | 40 | 3,378 | $433.96 | 20 |
| Tamsulosin Hcl | Tamsulosin Hcl | 40 | 3,390 | $835.78 | 24 |
| Bupropion Xl | Bupropion Hcl | 37 | 2,351 | $1,022.48 | 14 |
| Allopurinol | Allopurinol | 33 | 2,070 | $340.38 | 16 |
| Furosemide | Furosemide | 33 | 1,743 | $199.45 | 12 |
| Metformin Hcl | Metformin Hcl | 32 | 2,605 | $262.99 | 22 |
(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: 2022-06-09NUCC 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.
NUCC Taxonomy Code: 174400000X
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant (Certified)
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1004 W 32ND ST STE 400, AUSTIN, TX 787051915 (Tel: 5124545171)
Registered at 1004 W 32ND ST STE 400, AUSTIN, TX 787051915 (Tel: 5124545171)
NPI status registered as active in NPPES database
Registered at 1301 W 38TH ST, SUITE 601, AUSTIN, TX 787051000 (Tel: 5124545171)
Registered at 1301 W 38TH ST, SUITE 601, AUSTIN, TX 787051000 (Tel: 5124545171)
Recorded as JONATHAN KLOCEK, MD
Specialist (license number reported to NPPES: TX K0329)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Austin
- Dr. Wubet Gebrehiwot, MD
- Dr. Phu Vo, MD
- Dr. Valerie Chavez, MD
- Dr. Audrey Kuang, MD
- Dr. Mamatha Bollineni, MD
- Dr. Robert Groves, MD
Mailing Address
1004 W 32nd St Ste 400
Austin, TX 787051915
Phone: 5124545171