Dr. Loyal Richard Stierlen, DO
- Medicare services, 2024
- 226
- Medicare patients, 2024
- 181
- Part D claims, 2024
- 186
- Hospital affiliations
- 5
- Industry payments
- $20,155
- Practice address
- 4401 South Western Avenue, Oklahoma City, OK 73109
- Practice phone
- Call (405) 636-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stierlen'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. Loyal Richard Stierlen is a general surgeon in Oklahoma City, Oklahoma
Dr. Stierlen practices at INTEGRIS Health Southwest Medical Center in Oklahoma City, Oklahoma, part of INTEGRIS Health.
Dr. Stierlen's NPI, 1447275052, was assigned on July 13, 2006. Dr. Stierlen holds Oklahoma license 4438.
- NPI
- 1447275052NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476550443
- NPI enumeration date
- July 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (405) 636-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Loyal Richard Stierlen practices at INTEGRIS Health Southwest Medical Center in Oklahoma City, Oklahoma
Dr. Stierlen's primary practice is INTEGRIS Health Southwest Medical Center, at 4401 South Western Avenue, Oklahoma City, OK 73109 in Oklahoma County. The practice phone is (405) 636-7000.
- INTEGRIS Health Southwest Medical Center4401 South Western Avenue, Oklahoma City, OK 73109 · Oklahoma CountyPhone(405) 636-7000
Source: Dmand AI Affiliation Data
Dr. Loyal Richard Stierlen is affiliated with 6 sites of care and 1 medical group
Dr. Stierlen's primary practice is INTEGRIS Health Southwest Medical Center in Oklahoma City, Oklahoma, part of INTEGRIS Health. Dr. Stierlen is also affiliated with INTEGRIS Health Baptist Medical Center. The medical group on file is INTEGRIS Health Medical Group. Dmand AI also links Dr. Stierlen to 3 more hospitals and 1 group practice or clinic, 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. Loyal Richard Stierlen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stierlen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| INTEGRIS Health Southwest Medical Center | Available with a free account |
| +5 more affiliated sites | 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 INTEGRIS Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Loyal Richard Stierlen is one of 316 general surgeons in Oklahoma
Surgery is Dr. Stierlen's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Stierlen is licensed in Oklahoma.
Specialties and state licenses
- Surgery, OklahomaPrimary
General surgeons near Dr. Stierlen
Counts of general surgeons 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. Loyal Richard Stierlen billed Medicare for 226 services in 2024
CMS data shows 226 Medicare services from Dr. Stierlen across 9 procedure codes in 2024, for 181 Medicare patients. Medicare paid $22,617 for them.
Dr. Stierlen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2162024: 14732%
- Surgery
- 2023: 1962024: 6766%
- Imaging
- 2023: 142024: 1214%
Where Dr. Stierlen's Medicare services took place, 2024
- In an office6328%
- In a facility16372%
Dr. Stierlen compared with the Oklahoma median for general surgeons, 2024
- Dr. Stierlen
- Oklahoma median
- Medicare services
- 226vs 19019% above
- Medicare patients
- 181vs 14525% above
- Part D claims
- 139vs 612.3 times
Medians across 312 general surgeons in Oklahoma with Dmand AI profiles that report each measure.
Dr. Stierlen'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. Stierlen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stierlen and other general surgeons in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Loyal Richard Stierlen treated 181 Medicare patients in 2024, average age 73
CMS counts 181 Medicare patients who saw Dr. Stierlen in 2024. The largest group is 65 to 74, with 71 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.71, 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. Stierlen's median patient age at 57, with 53% women.
Dr. Stierlen's Medicare patients by age, 2024
Dr. Stierlen's Medicare patients by sex, 2024
- Women9251%
- Men8949%
Chronic conditions among Dr. Stierlen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes38%
- Ischemic heart disease37%
- Anxiety33%
- Chronic kidney disease31%
- Mood disorders31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stierlen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Loyal Richard Stierlen wrote 186 Medicare Part D claims in 2024
In 2024, Dr. Stierlen wrote 186 Medicare Part D claims for 139 patients. 99% of them were for generic drugs. CMS names the drug for 139 of them, across 1 drug with 11 or more claims each, at $925 in total drug cost. In 2023, CMS named 114 claims across 1 drug.
Dr. Stierlen's Part D claims by kind of drug, 2024
- Generic185 claims99%
- Brand-name and other1 claims1%
Dr. Stierlen'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. Stierlen's Part D claims, 2024
- Opioids82%153 of 186 claims
- Antibiotics7%13 of 186 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: 1142024: 13922%
Drugs named by CMS: 1 in 2024, 1 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
Dr. Loyal Richard Stierlen ranks in the 83rd percentile for hernia repair (minimally invasive) in Medicare
Dr. Stierlen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of hernia repair (minimally invasive) by Dr. Stierlen, more than 83% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Stierlen ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 83rd percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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. Loyal Richard Stierlen received $20,155 in industry payments from 2016 to 2025
CMS Open Payments shows 107 general payments to Dr. Stierlen from 20 drug and device companies from 2016 to 2025. Education make up the largest share, 67% of the total. Intuitive Surgical, Inc. paid the most, $18,058.
General payments to Dr. Stierlen by program year, 2016 to 2025
General payments to Dr. Stierlen by kind, 2016 to 2025
- Education$13,50067%
- Food and beverage$4,43222%
- Travel and lodging$2,22311%
Companies that paid Dr. Stierlen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Loyal Richard Stierlen'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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. Loyal Richard Stierlen
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. Loyal Richard Stierlen's NPI number?
Dr. Loyal Richard Stierlen's NPI number is 1447275052. It was assigned on July 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Loyal Richard Stierlen?
Dr. Loyal Richard Stierlen is a general surgeon in Oklahoma City, Oklahoma. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Loyal Richard Stierlen practice?
Dr. Stierlen practices at 4401 South Western Avenue, Oklahoma City, OK 73109. Dr. Stierlen's primary practice is INTEGRIS Health Southwest Medical Center in Oklahoma City, Oklahoma, part of INTEGRIS Health. Dmand AI also links Dr. Stierlen to 3 hospitals and 1 group practice or clinic.
What is Dr. Loyal Richard Stierlen's office phone number?
The practice phone on file for Dr. Stierlen is (405) 636-7000.
What is Dr. Loyal Richard Stierlen's medical license number?
Dr. Stierlen holds Oklahoma license 4438.
Which hospitals is Dr. Loyal Richard Stierlen affiliated with?
Dr. Stierlen practices at INTEGRIS Health Southwest Medical Center in Oklahoma City, Oklahoma. Dr. Stierlen is also affiliated with INTEGRIS Health Baptist Medical Center. Dmand AI links Dr. Stierlen to 3 more hospitals.
What medical group is Dr. Loyal Richard Stierlen part of?
Dr. Stierlen is linked to INTEGRIS Health Medical Group.
Does Dr. Loyal Richard Stierlen accept Medicare?
Yes. CMS data shows Dr. Stierlen billed Medicare for 226 services in 2024, and Dr. Stierlen accepts Medicare assignment.
How many Medicare patients does Dr. Loyal Richard Stierlen see?
CMS counts 181 Medicare patients who saw Dr. Stierlen in 2024, with an average age of 73.
What services does Dr. Loyal Richard Stierlen bill to Medicare?
In 2024, Dr. Stierlen's most billed Medicare services were hospital inpatient care (99222), surgery: skin and soft tissue (11042) and office visit, new patient (99204).
Show 3 more questionsShow fewer questions
What drugs does Dr. Loyal Richard Stierlen prescribe most?
In 2024 Medicare Part D data, Dr. Stierlen's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Loyal Richard Stierlen received payments from drug or device companies?
CMS Open Payments shows $20,155 in general payments to Dr. Stierlen from 20 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Loyal Richard Stierlen been practicing?
Dr. Stierlen graduated from medical school in 2001, 25 years ago.
Selling to surgery practices?
See general surgeons 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