Caleb Mckenzie Severns
Hospitalist โข Tulsa, OK
1705 E 19th St Ste 302
Tulsa, OK 741045410
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
NPI assigned on March 14, 2016; this date does not establish years in practice.
-
Published CMS data list 398 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:
- 99291 โ Critical care: 223 service units.
- 99292 โ Critical care: 69 service units.
- 76937 โ Ultrasonic guidance for blood vessel access: 33 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 6 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 78 Medicare Part D prescriptions, including refills, in 2019.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2019. Published rows only; this is not a quality measure.
-
Published Part D records, 2019:
- Carvedilol โ 22 prescription fills, including refills.
- Atorvastatin Calcium โ 20 prescription fills, including refills.
- Clopidogrel (Clopidogrel Bisulfate) โ 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2019. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 5 records in the table ยท Guide: How to read Medicare Part D prescriber data
-
Fewer Medicare Part B services than 70% of clinicians listed under Hospitalist in Tulsa, OK (2024, 104 clinicians with data). Median for this group: 794. Middle half: 391 to 1,054.
Fewer Medicare Part B services than 70% of clinicians listed under Hospitalist in Oklahoma (2024, 187 clinicians with data). Median for this group: 794. Middle half: 356 to 1,055.
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 635 in 2020 to 398 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
1705 E 19th St Ste 302
Tulsa, OK 741045410
CMS Doctors and Clinicians lists 2 distinct group names: Usacs Observation Medicine Services Of Oklahoma, Llc; Warren Clinic Inc. 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
At Still University Of Health Sciences, College Of Osteo Med, Kirksville
2016
What Public CMS Data Show
Hospitalist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
230 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 $58,069 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 $45,002 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
122 standardized 30-day fills in 2019
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
$73,838 in 2019
The total cost of these prescriptions in 2019, 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, 2019.
Open Payments general payments, program year 2021
All general payments: $665.47 across 5 records.
By nature of payment
- Food and Beverage: $665.47 across 5 records.
Reporting-company totals (3 largest of 5)
- Inari Medical, Inc.: $223.67 across 1 record.
- BOSTON SCIENTIFIC CORPORATION: $124.74 across 1 record.
- Amgen Inc.: $120.02 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 2021 (published June 30, 2026).
Years since graduation
10 years (graduated 2016)
CMS Doctors and Clinicians data list 2016 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
2016
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)
Caleb Severns 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 Caleb Severns 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 Tulsa and Oklahoma
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 70% of clinicians listed under Hospitalist in Tulsa, OK (2024, 104 clinicians with data). Median for this group: 794. Middle half: 391 to 1,054.
Fewer Medicare Part B services than 70% of clinicians listed under Hospitalist in Oklahoma (2024, 187 clinicians with data). Median for this group: 794. Middle half: 356 to 1,055.
Medicare-allowed amount
A lower Medicare-allowed amount than 65% of clinicians listed under Hospitalist in Tulsa, OK (2024, 104 clinicians with data). Median for this group: $76,202. Middle half: $50,154 to $114,437.
A lower Medicare-allowed amount than 60% of clinicians listed under Hospitalist in Oklahoma (2024, 187 clinicians with data). Median for this group: $78,365. Middle half: $42,847 to $109,316.
Paid by Medicare
A lower Medicare payment amount than 65% of clinicians listed under Hospitalist in Tulsa, OK (2024, 104 clinicians with data). Median for this group: $59,710. Middle half: $37,639 to $88,007.
A lower Medicare payment amount than 60% of clinicians listed under Hospitalist in Oklahoma (2024, 187 clinicians with data). Median for this group: $61,248. Middle half: $33,365 to $85,120.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Caleb Severns are from 2019.
140 active clinicians are listed under Hospitalist with a practice address in Tulsa, OK (262 in Oklahoma).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Tulsa
2.1% of these 140 clinicians have the CMS telehealth indicator.
80.7% of these 140 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 decreased 37% from 635 in 2020 to 398 in 2024.
- 2020: 635
- 2021: 569
- 2022: 600
- 2023: 524
- 2024: 398
-
Medicare-allowed amount
Medicare-allowed amount decreased 35% from $89,303 in 2020 to $58,069 in 2024.
- 2020: $89,303
- 2021: $77,976
- 2022: $98,108
- 2023: $84,012
- 2024: $58,069
-
Paid by Medicare
Paid by Medicare decreased 38% from $72,596 in 2020 to $45,002 in 2024.
- 2020: $72,596
- 2021: $62,098
- 2022: $78,121
- 2023: $66,598
- 2024: $45,002
-
Medicare Part D prescriptions
Medicare Part D prescriptions increased 59% from 49 in 2017 to 78 in 2019.
- 2017: 49
- 2018: 118
- 2019: 78
-
30-day fills
30-day fills increased 100% from 61 in 2017 to 122 in 2019.
- 2017: 61
- 2018: 188
- 2019: 122
-
Part D drug cost
Part D drug cost increased 1642% from $4,239 in 2017 to $73,838 in 2019.
- 2017: $4,239
- 2018: $25,675
- 2019: $73,838
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $408.83 in 2019 to $665.47 in 2021.
- 2019: $408.83
- 2021: $665.47
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2019), CMS Open Payments (2021), 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 2021 (payments made January 1 โ December 31, 2021): fewer than 11 records totaling $665.47.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Inari Medical, Inc. |
Food and Beverage
In-kind items and services
|
FLOWTRIEVER CATHETER, S | General | $223.67 |
| BOSTON SCIENTIFIC CORPORATION |
Food and Beverage
In-kind items and services
|
EKOSONIC | General | $124.74 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
|
Prolia | General | $120.02 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
|
Wegovy | General | $100.80 |
| GlaxoSmithKline, LLC. |
Food and Beverage
In-kind items and services
|
TRELEGY ELLIPTA | General | $96.24 |
Source: CMS Open Payments, program year 2021, 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 2018โ2023 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, 2019โ2024; 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 |
|---|---|---|---|---|
|
99291
Critical care, first 30-74 minutes
|
223 | 209 | $1635.33 | $198.33 |
|
99292
Critical care, each additional 30 minutes
|
69 | 42 | $783.90 | $99.62 |
|
76937
Ultrasonic guidance for blood vessel access
|
33 | 29 | $106.96 | $13.00 |
|
31500
Emergent insertion of breathing tube into windpipe using an endoscope
|
29 | 28 | $1056.32 | $130.73 |
|
36556
Insertion of non-tunneled central venous tube for infusion (5 years or older)
|
25 | 24 | $736.54 | $78.57 |
|
36620
Insertion of artery tube for blood sampling or infusion through skin
|
19 | 19 | $341.75 | $41.20 |
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 2019.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Carvedilol | Carvedilol | 22 | 1,110 | $133.26 | โ |
| Atorvastatin Calcium | Atorvastatin Calcium | 20 | 1,320 | $277.36 | 14 |
| Clopidogrel | Clopidogrel Bisulfate | 13 | 510 | $87.16 | โ |
| Triumeq | Abacavir/Dolutegravir/Lamivudi | 12 | 390 | $38,781.29 | โ |
| Biktarvy | Bictegrav/Emtricit/Tenofov Ala | 11 | 330 | $34,558.51 | โ |
Source: CMS Part D by Provider and Drug, 2019; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208M00000X
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20190805001584
OK
3476880154
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
Warren Clinic Inc
6161 S Yale Ave, Tulsa, OK 741361902
Phone: 9185024720
Usacs Observation Medicine Services Of Oklahoma, Llc
300 Rockefeller Dr, Muskogee, OK 744015075
Phone: 9186842101
Usacs Observation Medicine Services Of Oklahoma, Llc
1923 S Utica Ave, Tulsa, OK 741046520
Phone: 9187443131
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 Osteopathic Medicine (D.O.)
Internal Medicine - Endocrinology, Diabetes & Metabolism
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
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 1705 E 19TH ST STE 302, TULSA, OK 741045410 (Tel: 9187487585)
Registered at 1705 E 19TH ST STE 302, TULSA, OK 741045410 (Tel: 9187487585)
Internal Medicine (license number reported to NPPES: OK 6253)
NPI status registered as active in NPPES database
Registered at 744 W 9TH ST, TULSA, OK 741279020 (Tel: 9185995920)
Registered at 744 W 9TH ST, TULSA, OK 741279020
Recorded as CALEB SEVERNS
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Hospitalists in Tulsa
- Dr. Morad El-Raheb, MD
- Dr. Ann Campbell, MD
- Dr. Stanley Nwokenkwo, MD
- Dr. Patrick Norris, MD
- Dr. Kenneth Brown, DO
- Dr. Elizabeth Mason, DO
More public profiles in Oklahoma
Directory navigation, in NPI number order.
- Caroline Parker, PA Physician Assistant - Medical ยท Tulsa
- Katrina Weston, APRN-CNP Nurse Practitioner - Family ยท Midwest City
- Christopher Crane, MD Family Medicine - Sports Medicine ยท Sand Springs
- Ele Wu Internal Medicine - Clinical Cardiac Electrophysiology ยท Tulsa
- James Daugherty, DPT Physical Therapist ยท Moore
- Tiffany Cathey, PA Physician Assistant - Medical ยท Tulsa
- Sarah Tuttle, MS CCC-SLP Speech-Language Pathologist ยท Norman
- Robyn Fry, MD Emergency Medicine ยท Tulsa
- Jayme Myers, PA Physician Assistant - Medical ยท Checotah
- Shawn Morris, NP Nurse Practitioner - Family ยท Moore
- Mary Morrow, APRN-CNP Nurse Practitioner - Family ยท Tulsa
- Sarah Riopelle, MD Emergency Medicine ยท Tulsa
Mailing Address
1705 E 19th St Ste 302
Tulsa, OK 741045410
Phone: 9187487585