Dr. Michael K. Maxwell, MD
- Medicare services, 2024
- 2,450
- Medicare patients, 2024
- 564
- Part D claims, 2024
- 14,272
- Publications
- 2
- Hospital affiliations
- 4
- 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. Maxwell'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. Michael K. Maxwell is an internist in Tulsa, Oklahoma
Dr. Maxwell practices at Ascension St. John Medical Center in Tulsa, Oklahoma, part of Ascension Health Alliance.
Dr. Maxwell's NPI, 1346219334, was assigned on March 14, 2006. Dr. Maxwell graduated from University of Oklahoma College of Medicine in 1984. Dr. Maxwell holds Oklahoma license 15222.
- NPI
- 1346219334NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597954024
- NPI enumeration date
- March 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (918) 744-2296
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael K. Maxwell practices at Ascension St. John Medical Center in Tulsa, Oklahoma
Dr. Maxwell'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. Michael K. Maxwell is affiliated with 6 sites of care and 1 medical group
Dr. Maxwell's primary practice is Ascension St. John Medical Center in Tulsa, Oklahoma, part of Ascension Health Alliance. Dr. Maxwell is also affiliated with Saint Francis Hospital. The medical group on file is Omni Medical Group. Dmand AI also links Dr. Maxwell to 2 more hospitals, 1 group practice or clinic and 1 urgent care center, 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. Michael K. Maxwell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maxwell practices, 6 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 |
| +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 Ascension Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael K. Maxwell is one of 1,018 internists in Oklahoma
Internal medicine is Dr. Maxwell's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Maxwell is licensed in Oklahoma.
Specialties and state licenses
- Internal medicine, OklahomaPrimary
Internists near Dr. Maxwell
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. Michael K. Maxwell billed Medicare for 2,450 services in 2024
CMS data shows 2,450 Medicare services from Dr. Maxwell across 16 procedure codes in 2024, for 564 Medicare patients. Medicare paid $79,949 for them. Every service was in an office.
Dr. Maxwell's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0292024: 1,0603%
- Other services
- 2023: 4872024: 87079%
- Tests and treatments
- 2023: 1612024: 27168%
- Lab and pathology
- 2023: 2882024: 24914%
Dr. Maxwell compared with the Oklahoma median for internists, 2024
- Dr. Maxwell
- Oklahoma median
- Medicare services
- 2,450vs 6363.9 times
- Medicare patients
- 564vs 2432.3 times
- Part D claims
- 13,595vs 28248.2 times
Medians across 969 internists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Maxwell'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. Maxwell?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Maxwell and other internists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael K. Maxwell treated 564 Medicare patients in 2024, average age 76
CMS counts 564 Medicare patients who saw Dr. Maxwell in 2024. The largest group is 65 to 74, with 236 patients. 72% of them have high blood pressure, and 59% have high cholesterol. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maxwell's median patient age at 73, with 48% women.
Dr. Maxwell's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Maxwell's Medicare patients by sex, 2024
- Women26848%
- Men29652%
Chronic conditions among Dr. Maxwell's Medicare patients, 2024
- High blood pressure72%
- High cholesterol59%
- Arthritis43%
- Ischemic heart disease25%
- Chronic kidney disease20%
- Atrial fibrillation17%
- Diabetes16%
- Mood disorders16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maxwell'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
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael K. Maxwell wrote 14,272 Medicare Part D claims in 2024
In 2024, Dr. Maxwell wrote 14,272 Medicare Part D claims for 1,062 patients. 87% of them were for generic drugs. CMS names the drug for 13,595 of them, across 162 drugs with 11 or more claims each, at $874,273 in total drug cost. In 2023, CMS named 14,776 claims across 167 drugs.
Dr. Maxwell's Part D claims by kind of drug, 2024
- Generic12,405 claims87%
- Brand-name1,776 claims12%
- Other91 claims1%
Dr. Maxwell'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. Maxwell's Part D claims, 2024
- Opioids2%259 of 14,272 claims
- Antibiotics1%175 of 14,272 claims
- Antipsychotics, patients 65 and over0%18 of 14,272 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: 14,7762024: 13,5958%
Drugs named by CMS: 162 in 2024, 167 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. Michael K. Maxwell takes part in Medicare
Dr. Maxwell 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. Michael K. Maxwell has 2 publications on record
Dmand AI links 2 papers to Dr. Maxwell, published from 2014 to 2021. Dr. Maxwell's most frequent co-author is Michael W. Maxwell, MD.
Dr. Maxwell's most frequent co-authors
Recent publications by Dr. Maxwell
See who Dr. Maxwell researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Maxwell 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. Michael K. Maxwell received $222 in industry payments from 2017 to 2023
CMS Open Payments shows 4 general payments to Dr. Maxwell from 4 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Nuvasive, Inc. paid the most, $110.
General payments to Dr. Maxwell by program year, 2017 to 2023
Companies that paid Dr. Maxwell the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael K. Maxwell graduated from University of Oklahoma College of Medicine
Dr. Maxwell graduated from University of Oklahoma College of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael K. Maxwell'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. Michael K. Maxwell
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. Michael K. Maxwell's NPI number?
Dr. Michael K. Maxwell's NPI number is 1346219334. It was assigned on March 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael K. Maxwell?
Dr. Michael K. Maxwell is an internist in Tulsa, Oklahoma. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael K. Maxwell practice?
Dr. Maxwell practices at 1923 South Utica Avenue, Tulsa, OK 74104. Dr. Maxwell's primary practice is Ascension St. John Medical Center in Tulsa, Oklahoma, part of Ascension Health Alliance. Dmand AI also links Dr. Maxwell to 2 hospitals, 1 group practice or clinic and 1 urgent care center.
What is Dr. Michael K. Maxwell's office phone number?
The practice phone on file for Dr. Maxwell is (918) 744-2296.
What is Dr. Michael K. Maxwell's medical license number?
Dr. Maxwell holds Oklahoma license 15222.
Which hospitals is Dr. Michael K. Maxwell affiliated with?
Dr. Maxwell practices at Ascension St. John Medical Center in Tulsa, Oklahoma. Dr. Maxwell is also affiliated with Saint Francis Hospital. Dmand AI links Dr. Maxwell to 2 more hospitals.
What medical group is Dr. Michael K. Maxwell part of?
Dr. Maxwell is linked to Omni Medical Group.
Does Dr. Michael K. Maxwell accept Medicare?
Yes. CMS data shows Dr. Maxwell billed Medicare for 2,450 services in 2024, and Dr. Maxwell accepts Medicare assignment.
How many Medicare patients does Dr. Michael K. Maxwell see?
CMS counts 564 Medicare patients who saw Dr. Maxwell in 2024, with an average age of 76.
What services does Dr. Michael K. Maxwell bill to Medicare?
In 2024, Dr. Maxwell's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G2211).
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Where did Dr. Michael K. Maxwell go to medical school?
Dr. Maxwell graduated from University of Oklahoma College of Medicine in 1984.
What drugs does Dr. Michael K. Maxwell prescribe most?
In 2024 Medicare Part D data, Dr. Maxwell's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Michael K. Maxwell received payments from drug or device companies?
CMS Open Payments shows $222 in general payments to Dr. Maxwell from 4 companies from 2017 to 2023. The largest total came from Nuvasive, Inc.
How long has Dr. Michael K. Maxwell been practicing?
Dr. Maxwell graduated from medical school in 1984, 42 years ago.
Does Dr. Michael K. Maxwell do research?
Dmand AI links 2 publications to Dr. Maxwell, published from 2014 to 2021.
Who does Dr. Michael K. Maxwell publish with?
Dr. Maxwell's most frequent co-authors are Michael W. Maxwell, MD (2 shared papers).
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