Dr. Robert G. Niebergall, MD
- Medicare services, 2024
- 861
- Medicare patients, 2024
- 277
- Part D claims, 2024
- 11,539
- Hospital affiliations
- 1
- Industry payments
- $7,868
- Practice address
- 1923 South Utica Avenue, Tulsa, OK 74104
- Practice phone
- Call (918) 744-2296
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Niebergall's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Robert G. Niebergall is an internist in Tulsa, Oklahoma
Dr. Niebergall practices at Ascension St. John Medical Center in Tulsa, Oklahoma, part of Ascension Health Alliance.
Dr. Niebergall's NPI, 1912975012, was assigned on March 14, 2006. Dr. Niebergall holds Oklahoma license 13607.
- NPI
- 1912975012NPI Registry (opens in a new tab)
- NPI enumeration date
- March 14, 2006
- NPI status
- Active
- Practice phone
- (918) 744-2296
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- 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 G. Niebergall practices at Ascension St. John Medical Center in Tulsa, Oklahoma
Dr. Niebergall's primary practice is Ascension St. John Medical Center, at 1923 South Utica Avenue, Tulsa, OK 74104 in Tulsa County. The practice phone is (918) 744-2296.
- Ascension St. John Medical Center1923 South Utica Avenue, Tulsa, OK 74104 · Tulsa CountyPhone(918) 744-2296
Source: Dmand AI Affiliation Data
Dr. Robert G. Niebergall is affiliated with 4 sites of care and 2 medical groups
Dr. Niebergall's primary practice is Ascension St. John Medical Center in Tulsa, Oklahoma, part of Ascension Health Alliance. The medical group on file is Ascension St. John. Dmand AI also links Dr. Niebergall to 2 more group practices and clinics, 1 urgent care center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert G. Niebergall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Niebergall practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension St. John Medical Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ascension Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert G. Niebergall is one of 1,018 internists in Oklahoma
Internal medicine is Dr. Niebergall's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Niebergall is licensed in Oklahoma.
Specialties and state licenses
- Internal medicine, OklahomaPrimary
Internists near Dr. Niebergall
Counts of internists 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 G. Niebergall billed Medicare for 861 services in 2024
CMS data shows 861 Medicare services from Dr. Niebergall across 9 procedure codes in 2024, for 277 Medicare patients. Medicare paid $29,333 for them. Every service was in an office.
Dr. Niebergall's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4762024: 4954%
- Other services
- 2023: 2662024: 22515%
- Lab and pathology
- 2023: 1882024: 14125%
- Tests and treatments
- 2023: 182024: 0100%
Dr. Niebergall compared with the Oklahoma median for internists, 2024
- Dr. Niebergall
- Oklahoma median
- Medicare services
- 861vs 63635% above
- Medicare patients
- 277vs 24314% above
- Part D claims
- 10,895vs 28238.6 times
Medians across 969 internists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Niebergall'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.
Need commercial claims for Dr. Niebergall?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Niebergall and other internists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert G. Niebergall treated 277 Medicare patients in 2024, average age 75
CMS counts 277 Medicare patients who saw Dr. Niebergall in 2024. The largest group is 65 to 74, with 116 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Niebergall's median patient age at 70, with 48% women.
Dr. Niebergall's Medicare patients by age, 2024
Dr. Niebergall's Medicare patients by sex, 2024
- Women13749%
- Men14051%
Chronic conditions among Dr. Niebergall's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis42%
- Diabetes39%
- Ischemic heart disease27%
- Chronic kidney disease24%
- Atrial fibrillation21%
- Anxiety20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Niebergall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert G. Niebergall wrote 11,539 Medicare Part D claims in 2024
In 2024, Dr. Niebergall wrote 11,539 Medicare Part D claims for 710 patients. 85% of them were for generic drugs. CMS names the drug for 10,895 of them, across 171 drugs with 11 or more claims each, at $977,285 in total drug cost. In 2023, CMS named 12,372 claims across 178 drugs.
Dr. Niebergall's Part D claims by kind of drug, 2024
- Generic9,803 claims85%
- Brand-name1,674 claims15%
- Other62 claims1%
Dr. Niebergall's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Niebergall's Part D claims, 2024
- Opioids4%504 of 11,539 claims
- Antibiotics1%170 of 11,539 claims
- Antipsychotics, patients 65 and over0%44 of 11,539 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 12,3722024: 10,89512%
Drugs named by CMS: 171 in 2024, 178 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Robert G. Niebergall received $7,868 in industry payments from 2016 to 2021
CMS Open Payments shows 576 general payments to Dr. Niebergall from 35 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $1,094.
General payments to Dr. Niebergall by program year, 2016 to 2021
General payments to Dr. Niebergall by kind, 2016 to 2021
- Food and beverage$7,841100%
- Education$270%
Companies that paid Dr. Niebergall the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert G. Niebergall's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Robert G. Niebergall
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 G. Niebergall's NPI number?
Dr. Robert G. Niebergall's NPI number is 1912975012. It was assigned on March 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert G. Niebergall?
Dr. Robert G. Niebergall is an internist in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Robert G. Niebergall practice?
Dr. Niebergall practices at 1923 South Utica Avenue, Tulsa, OK 74104. Dr. Niebergall's primary practice is Ascension St. John Medical Center in Tulsa, Oklahoma, part of Ascension Health Alliance. Dmand AI also links Dr. Niebergall to 2 group practices and clinics, 1 urgent care center and 1 medical group.
What is Dr. Robert G. Niebergall's office phone number?
The practice phone on file for Dr. Niebergall is (918) 744-2296.
What is Dr. Robert G. Niebergall's medical license number?
Dr. Niebergall holds Oklahoma license 13607.
Which hospitals is Dr. Robert G. Niebergall affiliated with?
Dr. Niebergall practices at Ascension St. John Medical Center in Tulsa, Oklahoma.
What medical group is Dr. Robert G. Niebergall part of?
Dr. Niebergall is linked to Ascension St. John. Dmand AI links Dr. Niebergall to 1 more medical group.
Does Dr. Robert G. Niebergall accept Medicare?
Yes. CMS data shows Dr. Niebergall billed Medicare for 861 services in 2024.
How many Medicare patients does Dr. Robert G. Niebergall see?
CMS counts 277 Medicare patients who saw Dr. Niebergall in 2024, with an average age of 75.
What services does Dr. Robert G. Niebergall bill to Medicare?
In 2024, Dr. Niebergall's most billed Medicare services were office visit, established patient (99214), lab and pathology test (83036) and medicare service (G0439).
Show 3 more questionsShow fewer questions
What drugs does Dr. Robert G. Niebergall prescribe most?
In 2024 Medicare Part D data, Dr. Niebergall's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Gabapentin.
Has Dr. Robert G. Niebergall received payments from drug or device companies?
CMS Open Payments shows $7,868 in general payments to Dr. Niebergall from 35 companies from 2016 to 2021. The largest total came from Novo Nordisk Inc.
How long has Dr. Robert G. Niebergall been practicing?
Dr. Niebergall graduated from medical school in 1978, 48 years ago.
Selling to internal medicine practices?
See internists in Oklahoma by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card