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Dr. Steven Louis Fillmore, MD
NPI1225010655PAC ID2668403080
- Medicare services, 2024
- 105
- Medicare patients, 2024
- 69
- Part D claims, 2024
- 78
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 1921 Stonecipher Blvd, Ada, OK 74820
- Practice phone
- Call (580) 436-3980
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Fillmore's professional email, personal email and mobile number
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Dr. Steven Louis Fillmore is an internist in Ada, Oklahoma
Dr. Fillmore practices at Chickasaw Nation Medical Center in Ada, Oklahoma, part of The Chickasaw Nation.
Dr. Fillmore's NPI, 1225010655, was assigned on November 21, 2005. Dr. Fillmore graduated from University of Oklahoma College of Medicine in 1982. Dr. Fillmore holds Oklahoma license 14295.
NPI and contact details
- NPI
- 1225010655NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668403080
- NPI enumeration date
- November 21, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (580) 436-3980
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven Louis Fillmore practices at Chickasaw Nation Medical Center in Ada, Oklahoma
Dr. Fillmore's primary practice is Chickasaw Nation Medical Center, at 1921 Stonecipher Blvd, Ada, OK 74820 in Pontotoc County. The practice phone is (580) 436-3980.
- Chickasaw Nation Medical Center1921 Stonecipher Blvd, Ada, OK 74820 · Pontotoc CountyPhone(580) 436-3980
Source: Dmand AI Affiliation Data
Dr. Steven Louis Fillmore is affiliated with 1 site of care and 2 medical groups
Dr. Fillmore's primary practice is Chickasaw Nation Medical Center in Ada, Oklahoma, part of The Chickasaw Nation. The medical group on file is Chickasaw Nation Medical Center. Dmand AI also links Dr. Fillmore to 1 more medical group, named with a free account. Dr. Fillmore's employer is on file too: a hospital.
Chickasaw Nation Medical Center1 medical groupName with a free accountEmployer: hospitalName with a free account
See all 3 affiliations for Dr. FillmoreSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Steven Louis Fillmore's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fillmore practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chickasaw Nation Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Steven Louis Fillmore is one of 1,018 internists in Oklahoma
Internal medicine is Dr. Fillmore's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Fillmore is licensed in Oklahoma.
Specialties and state licenses
- Internal medicine, OklahomaPrimary
Internists near Dr. Fillmore
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. Steven Louis Fillmore billed Medicare for 105 services in 2024
CMS data shows 105 Medicare services from Dr. Fillmore across 5 procedure codes in 2024, for 69 Medicare patients. Medicare paid $5,908 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024105
Medicare patients69
Paid by Medicare$5,908
Procedure codes5
Dr. Fillmore's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1022024: 1053%
Dr. Fillmore compared with the Oklahoma median for internists, 2024
- Dr. Fillmore
- Oklahoma median
- Medicare services
- 105vs 63683% below
- Medicare patients
- 69vs 24372% below
- Part D claims
- 11vs 28296% below
Medians across 969 internists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Fillmore'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. Fillmore?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fillmore and other internists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven Louis Fillmore treated 69 Medicare patients in 2024, average age 72
CMS counts 69 Medicare patients who saw Dr. Fillmore in 2024. The largest group is 75 to 84, with 25 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.62, 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. Fillmore's median patient age at 69, with 54% women.
Medicare patients, 202469
Average age72
Average risk score1.62
Also on Medicaid19%
Dr. Fillmore's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Fillmore's Medicare patients by sex, 2024
- Women4058%
- Men2942%
Chronic conditions among Dr. Fillmore's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis61%
- Diabetes58%
- Chronic kidney disease43%
- COPD39%
- Anxiety36%
- Heart failure36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fillmore's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steven Louis Fillmore wrote 78 Medicare Part D claims in 2024
In 2024, Dr. Fillmore wrote 78 Medicare Part D claims for 17 patients. 68% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $467 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Part D claims, 202478
Drugs named by CMS1
Total drug cost$467
Part D patients17
Dr. Fillmore's Part D claims by kind of drug, 2024
- Generic53 claims68%
- Brand-name25 claims32%
Dr. Fillmore'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. Fillmore's Part D claims, 2024
- Antibiotics14%11 of 78 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: 122024: 118%
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
How Dr. Steven Louis Fillmore takes part in Medicare
Dr. Fillmore accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Steven Louis Fillmore has 1 publication on record
Dmand AI links 1 paper to Dr. Fillmore. Dr. Fillmore's most frequent co-authors are George S. Chrysant, MD and Richard B. McClain, MD.
Papers1
Dr. Fillmore's most frequent co-authors
Recent publications by Dr. Fillmore
See who Dr. Fillmore researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fillmore works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Steven Louis Fillmore received $23 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Fillmore from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Lantheus Medical Imaging, Inc. paid the most, $23.
Companies that paid Dr. Fillmore the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Steven Louis Fillmore graduated from University of Oklahoma College of Medicine
Dr. Fillmore graduated from University of Oklahoma College of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Steven Louis Fillmore'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Steven Louis Fillmore
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. Steven Louis Fillmore's NPI number?
Dr. Steven Louis Fillmore's NPI number is 1225010655. It was assigned on November 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven Louis Fillmore?
Dr. Steven Louis Fillmore is an internist in Ada, Oklahoma. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Steven Louis Fillmore practice?
Dr. Fillmore practices at 1921 Stonecipher Blvd, Ada, OK 74820. Dr. Fillmore's primary practice is Chickasaw Nation Medical Center in Ada, Oklahoma, part of The Chickasaw Nation. Dmand AI also links Dr. Fillmore to 1 medical group.
What is Dr. Steven Louis Fillmore's office phone number?
The practice phone on file for Dr. Fillmore is (580) 436-3980.
What is Dr. Steven Louis Fillmore's medical license number?
Dr. Fillmore holds Oklahoma license 14295.
Which hospitals is Dr. Steven Louis Fillmore affiliated with?
Dr. Fillmore practices at Chickasaw Nation Medical Center in Ada, Oklahoma.
What medical group is Dr. Steven Louis Fillmore part of?
Dr. Fillmore is linked to Chickasaw Nation Medical Center. Dmand AI links Dr. Fillmore to 1 more medical group.
Does Dr. Steven Louis Fillmore accept Medicare?
Yes. CMS data shows Dr. Fillmore billed Medicare for 105 services in 2024, and Dr. Fillmore accepts Medicare assignment.
How many Medicare patients does Dr. Steven Louis Fillmore see?
CMS counts 69 Medicare patients who saw Dr. Fillmore in 2024, with an average age of 72.
What services does Dr. Steven Louis Fillmore bill to Medicare?
In 2024, Dr. Fillmore's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99222) and hospital inpatient care (99238).
Show 6 more questionsShow fewer questions
Where did Dr. Steven Louis Fillmore go to medical school?
Dr. Fillmore graduated from University of Oklahoma College of Medicine in 1982.
What drugs does Dr. Steven Louis Fillmore prescribe most?
In 2024 Medicare Part D data, Dr. Fillmore's most prescribed drugs by claims were Carvedilol.
Has Dr. Steven Louis Fillmore received payments from drug or device companies?
CMS Open Payments shows $23 in general payments to Dr. Fillmore from 1 company from 2017 to 2017. The largest total came from Lantheus Medical Imaging, Inc.
How long has Dr. Steven Louis Fillmore been practicing?
Dr. Fillmore graduated from medical school in 1982, 44 years ago.
Does Dr. Steven Louis Fillmore do research?
Dmand AI links 1 publication to Dr. Fillmore.
Who does Dr. Steven Louis Fillmore publish with?
Dr. Fillmore's most frequent co-authors are George S. Chrysant, MD (1 shared paper) and Richard B. McClain, MD (1 shared paper).
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