Dr. Robert C. Sonnenschein, MD

  • Tulsa, OK
  • Cardiologist
NPI1306816855
Medicare services, 2024
455
Medicare patients, 2024
176
Part D claims, 2018
24
Hospital affiliations
1
Industry payments
$532
Practice address
8801 South 101st East Avenue, Tulsa, OK 74133
Practice phone
Call (918) 294-4499
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Hillcrest Hospital South

Hospital · Tulsa, Oklahoma

See all 3 affiliations

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Dr. Robert C. Sonnenschein is a cardiologist in Tulsa, Oklahoma

Dr. Sonnenschein practices at Hillcrest Hospital South in Tulsa, Oklahoma, part of Ardent Health.

Dr. Sonnenschein's NPI, 1306816855, was assigned on January 26, 2006. Dr. Sonnenschein graduated from Rush Medical College of Rush University in 1978. Dr. Sonnenschein holds Oklahoma license 13387.

NPI and contact details
NPI enumeration date
January 26, 2006
NPI status
Active
Practice phone
(918) 294-4499
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
74
Medical school graduation
1978

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Robert C. Sonnenschein practices at Hillcrest Hospital South in Tulsa, Oklahoma

Dr. Sonnenschein's primary practice is Hillcrest Hospital South, at 8801 South 101st East Avenue, Tulsa, OK 74133 in Tulsa County. The practice phone is (918) 294-4499.

Source: Dmand AI Affiliation Data

Dr. Robert C. Sonnenschein is affiliated with 2 sites of care and 1 medical group

Dr. Sonnenschein's primary practice is Hillcrest Hospital South in Tulsa, Oklahoma, part of Ardent Health. The medical group on file is Oklahoma Heart Institute. Dmand AI also links Dr. Sonnenschein to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Sonnenschein

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Robert C. Sonnenschein's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sonnenschein practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Hillcrest Hospital SouthAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Robert C. Sonnenschein is one of 186 cardiologists in Oklahoma

Cardiovascular disease is Dr. Sonnenschein's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Sonnenschein is licensed in Oklahoma.

Specialties and state licenses

  • Cardiovascular disease, OklahomaPrimaryLicense 13387 · taxonomy 207RC0000X

Cardiologists near Dr. Sonnenschein

Counts of cardiologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Robert C. Sonnenschein billed Medicare for 455 services in 2024

CMS data shows 455 Medicare services from Dr. Sonnenschein across 5 procedure codes in 2024, for 176 Medicare patients. Medicare paid $23,031 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024455
Medicare patients176
Paid by Medicare$23,031
Procedure codes5

Dr. Sonnenschein's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,0142024: 42458%
Tests and treatments
2023: 2472024: 3187%

Dr. Sonnenschein compared with the Oklahoma median for cardiologists, 2024

  • Dr. Sonnenschein
  • Oklahoma median
Medicare services
455vs 2,25180% below
Medicare patients
176vs 1,06483% below
Part D claims
24vs 2,41799% below

Medians across 176 cardiologists in Oklahoma with Dmand AI profiles that report each measure.

Dr. Sonnenschein's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Sonnenschein

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Robert C. Sonnenschein treated 176 Medicare patients in 2024, average age 77

CMS counts 176 Medicare patients who saw Dr. Sonnenschein in 2024. The largest group is 75 to 84, with 78 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.24, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Sonnenschein's median patient age at 73, with 71% women.

Medicare patients, 2024176
Average age77
Average risk score2.24
Also on Medicaid18%

Dr. Sonnenschein's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Sonnenschein's Medicare patients by sex, 2024

  • Women8951%
  • Men8749%

Chronic conditions among Dr. Sonnenschein's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Ischemic heart disease75%
  4. Heart failure68%
  5. Chronic kidney disease59%
  6. Diabetes53%
  7. Arthritis51%
  8. Atrial fibrillation48%

Share of Medicare patients with each condition. A patient can have several.

Dr. Sonnenschein's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women71%
  • Men29%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Robert C. Sonnenschein wrote 24 Medicare Part D claims in 2018

In 2018, Dr. Sonnenschein wrote 24 Medicare Part D claims. They cover 2 drugs, with $4,117 in total drug cost. In 2017, CMS named 77 claims across 3 drugs.

Part D claims, 201824
Drugs named by CMS2
Total drug cost$4,117

Dr. Sonnenschein's most prescribed drugs by claims, 2018

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2017 to 2018

  • 2017
  • 2018
Claims for drugs CMS names
2017: 772018: 2469%

Drugs named by CMS: 2 in 2018, 3 in 2017.

See all prescribing by Dr. Sonnenschein

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

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Dr. Robert C. Sonnenschein received $532 in industry payments from 2016 to 2024

CMS Open Payments shows 30 general payments to Dr. Sonnenschein from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $377.

General payments to Dr. Sonnenschein by program year, 2016 to 2024

Companies that paid Dr. Sonnenschein the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Sonnenschein

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Robert C. Sonnenschein graduated from Rush Medical College of Rush University

Dr. Sonnenschein graduated from Rush Medical College of Rush University in 1978.

  1. Medical schoolRush Medical College of Rush University

Source: Dmand AI Professional Profile Data

Sources for Dr. Robert C. Sonnenschein's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Robert C. Sonnenschein

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Robert C. Sonnenschein's NPI number?

Dr. Robert C. Sonnenschein's NPI number is 1306816855. It was assigned on January 26, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Robert C. Sonnenschein?

Dr. Robert C. Sonnenschein is a cardiologist in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).

Where does Dr. Robert C. Sonnenschein practice?

Dr. Sonnenschein practices at 8801 South 101st East Avenue, Tulsa, OK 74133. Dr. Sonnenschein's primary practice is Hillcrest Hospital South in Tulsa, Oklahoma, part of Ardent Health. Dmand AI also links Dr. Sonnenschein to 1 group practice or clinic.

What is Dr. Robert C. Sonnenschein's office phone number?

The practice phone on file for Dr. Sonnenschein is (918) 294-4499.

What is Dr. Robert C. Sonnenschein's medical license number?

Dr. Sonnenschein holds Oklahoma license 13387.

Which hospitals is Dr. Robert C. Sonnenschein affiliated with?

Dr. Sonnenschein practices at Hillcrest Hospital South in Tulsa, Oklahoma.

What medical group is Dr. Robert C. Sonnenschein part of?

Dr. Sonnenschein is linked to Oklahoma Heart Institute.

Does Dr. Robert C. Sonnenschein accept Medicare?

Yes. CMS data shows Dr. Sonnenschein billed Medicare for 455 services in 2024.

How many Medicare patients does Dr. Robert C. Sonnenschein see?

CMS counts 176 Medicare patients who saw Dr. Sonnenschein in 2024, with an average age of 77.

What services does Dr. Robert C. Sonnenschein bill to Medicare?

In 2024, Dr. Sonnenschein's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99231) and hospital inpatient care (99233).

Show 4 more questionsShow fewer questions

Where did Dr. Robert C. Sonnenschein go to medical school?

Dr. Sonnenschein graduated from Rush Medical College of Rush University in 1978.

What drugs does Dr. Robert C. Sonnenschein prescribe most?

In 2018 Medicare Part D data, Dr. Sonnenschein's most prescribed drugs by claims were Clopidogrel and Brilinta.

Has Dr. Robert C. Sonnenschein received payments from drug or device companies?

CMS Open Payments shows $532 in general payments to Dr. Sonnenschein from 5 companies from 2016 to 2024. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).

How long has Dr. Robert C. Sonnenschein been practicing?

Dr. Sonnenschein graduated from medical school in 1978, 48 years ago.

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