Dr. Johnathon Scott Kerns , DO
Emergency Medicine โข Katy, TX
23900 Katy Fwy
Katy, TX 774941323
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Dr. Johnathon Kerns is listed in NPPES under Emergency Medicine.
-
NPI assigned on December 27, 2009; this date does not establish years in practice.
-
Published CMS data list 962 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
-
Published Part B service records, 2024:
- 93010 โ Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only: 400 service units.
- 99285 โ Emergency department visit with high level of medical decision making: 371 service units.
- 99291 โ Critical care: 108 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 187 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.
-
Published Part D records, 2024:
- Ondansetron Odt (Ondansetron) โ 62 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) โ 59 prescription fills, including refills.
- Prednisone โ 19 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 6 records in the table ยท Guide: How to read Medicare Part D prescriber data
-
More Medicare Part B services than 90% of clinicians listed under Emergency Medicine in Katy, TX (2024, 19 clinicians with data). Median for this group: 463. Middle half: 169 to 725.
More Medicare Part B services than 95% of clinicians listed under Emergency Medicine in Texas (2024, 3,145 clinicians with data). Median for this group: 290. Middle half: 132 to 513.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 908 in 2020 to 962 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
23900 Katy Fwy
Katy, TX 774941323
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Memorial Hermann Hospital Based Physician Group. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
Philadelphia College Of Osteopathic Medicine
2009
What Public CMS Data Show
Emergency Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
537 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $102,300 in 2024
The total amount Medicare approved for these services in 2024. 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, 2024.
Paid by Medicare
About $77,103 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, 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, 2024.
30-day fills
187 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
$1,133 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.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
Years since graduation
17 years (graduated 2009)
CMS Doctors and Clinicians data list 2009 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2009
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.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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.
Enrolled in Medicare (PECOS)
Dr. Kerns has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Kerns 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 Katy and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 90% of clinicians listed under Emergency Medicine in Katy, TX (2024, 19 clinicians with data). Median for this group: 463. Middle half: 169 to 725.
More Medicare Part B services than 95% of clinicians listed under Emergency Medicine in Texas (2024, 3,145 clinicians with data). Median for this group: 290. Middle half: 132 to 513.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Emergency Medicine in Katy, TX (2024, 19 clinicians with data). Median for this group: $42,707. Middle half: $17,160 to $71,253.
A higher Medicare-allowed amount than 90% of clinicians listed under Emergency Medicine in Texas (2024, 3,145 clinicians with data). Median for this group: $36,170. Middle half: $16,337 to $61,083.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Emergency Medicine in Katy, TX (2024, 19 clinicians with data). Median for this group: $33,520. Middle half: $12,927 to $53,312.
A higher Medicare payment amount than 90% of clinicians listed under Emergency Medicine in Texas (2024, 3,145 clinicians with data). Median for this group: $27,475. Middle half: $12,386 to $47,065.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under Emergency Medicine in Katy, TX (2024, 16 clinicians with data). Median for this group: 153. Middle half: 99 to 182.
More Part D prescriptions than 65% of clinicians listed under Emergency Medicine in Texas (2024, 2,614 clinicians with data). Median for this group: 114. Middle half: 46 to 221.
Part D drug cost
A higher Part D drug cost than 80% of clinicians listed under Emergency Medicine in Katy, TX (2024, 16 clinicians with data). Median for this group: $1,035. Middle half: $469 to $1,128.
Close to the middle for clinicians listed under Emergency Medicine in Texas (2024, 2,614 clinicians with data). Median for this group: $839. Middle half: $311 to $1,721.
30 active clinicians are listed under Emergency Medicine with a practice address in Katy, TX (4,895 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Katy
0% of these 30 clinicians have the CMS telehealth indicator.
56.7% of these 30 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.
-
Medicare Part B services
Medicare Part B services stayed about the same: 908 in 2020 and 962 in 2024.
- 2020: 908
- 2021: 950
- 2022: 939
- 2023: 853
- 2024: 962
-
Medicare-allowed amount
Medicare-allowed amount stayed about the same: $98,342 in 2020 and $102,300 in 2024.
- 2020: $98,342
- 2021: $106,325
- 2022: $101,270
- 2023: $97,490
- 2024: $102,300
-
Paid by Medicare
Paid by Medicare stayed about the same: $79,166 in 2020 and $77,103 in 2024.
- 2020: $79,166
- 2021: $86,731
- 2022: $82,368
- 2023: $76,663
- 2024: $77,103
-
Medicare Part D prescriptions
Medicare Part D prescriptions increased 12% from 167 in 2020 to 187 in 2024.
- 2020: 167
- 2021: 206
- 2022: 220
- 2023: 170
- 2024: 187
-
30-day fills
30-day fills increased 12% from 167 in 2020 to 187 in 2024.
- 2020: 167
- 2021: 206
- 2022: 220
- 2023: 170
- 2024: 187
-
Part D drug cost
Part D drug cost varied from year to year: $1,154 in 2020 and $1,133 in 2024.
- 2020: $1,154
- 2021: $1,939
- 2022: $1,591
- 2023: $1,068
- 2024: $1,133
Sources: CMS Medicare Physician & Other Practitioners (2024), 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 ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 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, 2017โ2024; 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 |
|---|---|---|---|---|
|
93010
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
|
400 | 350 | $56.00 | $8.04 |
|
99285
Emergency department visit with high level of medical decision making
|
371 | 359 | $1136.00 | $177.08 |
|
99291
Critical care, first 30-74 minutes
|
108 | 106 | $1455.00 | $215.47 |
|
99284
Emergency department visit with moderate level of medical decision making
|
83 | 81 | $782.00 | $121.89 |
Source: CMS Part B by Provider and Service, 2024; 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 |
|---|---|---|---|---|---|
| Ondansetron Odt | Ondansetron | 62 | 367 | $387.32 | 61 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 59 | 313 | $267.90 | 59 |
| Prednisone | Prednisone | 19 | 95 | $32.65 | 19 |
| Cephalexin | Cephalexin | 19 | 129 | $100.13 | 19 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 16 | 121 | $140.20 | 16 |
| Cefdinir | Cefdinir | 12 | 102 | $204.90 | 12 |
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: 2024-09-17NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - EMERGENCY MEDICINE
I20130924000265
TX
4183868664
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Memorial Hermann Hospital Based Physician Group
23900 Katy Fwy, Katy, TX 774941323
Phone: 7133386565
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Emergency Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner
Family Nurse Practitioner
Hospitalist
Doctor of Medicine (M.D.)
Emergency Medicine
Doctor of Osteopathic Medicine (D.O.)
Nurse Practitioner - Acute Care
Nurse Practitioner
Emergency Medicine
Doctor of Osteopathic Medicine (D.O.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Emergency Medicine (license number reported to NPPES: MI 5315043109)
NPI status registered as active in NPPES database
Registered at 23900 KATY FWY, KATY, TX 774941323 (Tel: 2816447000)
Registered at 1140 BUSINESS CENTER DR STE 201, HOUSTON, TX 770432744 (Tel: 7139325757)
Recorded as JOHNATHON KERNS, DO
Emergency Medicine (license number reported to NPPES: TX P7135)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Emergency Medicine Providers in Katy
- Jasmine Bookert
- Dr. Michael Freeto, MD
- Dr. Melissa Lancaster, DO
- Dr. Kelly Ballentine, DO
- Dr. Munirah Reukauf, MD
- Dr. Michele Fowler, DO
Mailing Address
1140 Business Center Dr Ste 201
Houston, TX 770432744
Phone: 7139325757