Dr. Patrick Michael Garrison Jr., MD
- Medicare services, 2024
- 844
- Medicare patients, 2024
- 177
- Part D claims, 2024
- 4,359
- Hospital affiliations
- 2
- Industry payments
- $16,280
- Practice address
- 4300 West Memorial Road, Oklahoma City, OK 73120
- Practice phone
- Call (405) 755-1515
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Garrison's professional email, personal email and mobile number
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Dr. Patrick Michael Garrison Jr. is an internist in Oklahoma City, Oklahoma
Dr. Garrison practices at Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma, part of Mercy.
Dr. Garrison's NPI, 1598806663, was assigned on February 9, 2007. Dr. Garrison graduated from University of Oklahoma College of Medicine in 2004. Dr. Garrison holds Oklahoma license 23948.
- NPI
- 1598806663NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860566114
- NPI enumeration date
- February 9, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (405) 755-1515
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Patrick Michael Garrison Jr. practices at Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma
Dr. Garrison's primary practice is Mercy Hospital Oklahoma City, at 4300 West Memorial Road, Oklahoma City, OK 73120 in Oklahoma County. The practice phone is (405) 755-1515.
- Mercy Hospital Oklahoma City4300 West Memorial Road, Oklahoma City, OK 73120 · Oklahoma CountyPhone(405) 755-1515
Source: Dmand AI Affiliation Data
Dr. Patrick Michael Garrison Jr. is affiliated with 5 sites of care and 2 medical groups
Dr. Garrison's primary practice is Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma, part of Mercy. Dr. Garrison is also affiliated with OU Health University of Oklahoma Medical Center. The medical group on file is Mercy Clinic Oklahoma Communities. Dmand AI also links Dr. Garrison to 2 more group practices and clinics, 1 home health agency 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. Patrick Michael Garrison Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Garrison practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital Oklahoma City | Available with a free account |
| +4 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 Mercy and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Patrick Michael Garrison Jr. is one of 1,018 internists in Oklahoma
Internal medicine is Dr. Garrison's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Garrison is licensed in Oklahoma.
Specialties and state licenses
- Internal medicine, OklahomaPrimary
Internists near Dr. Garrison
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. Patrick Michael Garrison Jr. billed Medicare for 844 services in 2024
CMS data shows 844 Medicare services from Dr. Garrison across 8 procedure codes in 2024, for 177 Medicare patients. Medicare paid $52,459 for them. Every service was in an office.
Dr. Garrison's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4012024: 4205%
- Other services
- 2023: 1952024: 32969%
- Tests and treatments
- 2023: 952024: 8214%
- Lab and pathology
- 2023: 122024: 138%
- Imaging
- 2023: 172024: 0100%
Dr. Garrison compared with the Oklahoma median for internists, 2024
- Dr. Garrison
- Oklahoma median
- Medicare services
- 844vs 63633% above
- Medicare patients
- 177vs 24327% below
- Part D claims
- 3,768vs 28213.4 times
Medians across 969 internists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Garrison'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. Garrison?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Garrison and other internists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Patrick Michael Garrison Jr. treated 177 Medicare patients in 2024, average age 73
CMS counts 177 Medicare patients who saw Dr. Garrison in 2024. The largest group is 65 to 74, with 83 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Garrison's median patient age at 37, with 55% women.
Dr. Garrison's Medicare patients by age, 2024
Dr. Garrison's Medicare patients by sex, 2024
- Women11364%
- Men6436%
Chronic conditions among Dr. Garrison's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis58%
- Ischemic heart disease34%
- Mood disorders31%
- Depression30%
- Diabetes30%
- Chronic kidney disease29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Garrison's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Patrick Michael Garrison Jr. wrote 4,359 Medicare Part D claims in 2024
In 2024, Dr. Garrison wrote 4,359 Medicare Part D claims for 239 patients. 87% of them were for generic drugs. CMS names the drug for 3,768 of them, across 98 drugs with 11 or more claims each, at $312,711 in total drug cost. In 2023, CMS named 3,581 claims across 94 drugs.
Dr. Garrison's Part D claims by kind of drug, 2024
- Generic3,774 claims87%
- Brand-name573 claims13%
- Other12 claims0%
Dr. Garrison'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. Garrison's Part D claims, 2024
- Opioids2%82 of 4,359 claims
- Antibiotics2%97 of 4,359 claims
- Antipsychotics, patients 65 and over1%25 of 4,359 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: 3,5812024: 3,7685%
Drugs named by CMS: 98 in 2024, 94 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. Patrick Michael Garrison Jr. offers telehealth to Medicare patients
Dr. Garrison accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Garrison as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Patrick Michael Garrison Jr. received $16,280 in industry payments from 2016 to 2025
CMS Open Payments shows 1,266 general payments to Dr. Garrison from 58 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,479.
General payments to Dr. Garrison by program year, 2016 to 2025
General payments to Dr. Garrison by kind, 2016 to 2025
- Food and beverage$16,252100%
- Education$280%
Companies that paid Dr. Garrison the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Patrick Michael Garrison Jr. graduated from University of Oklahoma College of Medicine
Dr. Garrison graduated from University of Oklahoma College of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Patrick Michael Garrison Jr.'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) |
| 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. Patrick Michael Garrison Jr.
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. Patrick Michael Garrison Jr.'s NPI number?
Dr. Patrick Michael Garrison Jr.'s NPI number is 1598806663. It was assigned on February 9, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick Michael Garrison Jr.?
Dr. Patrick Michael Garrison Jr. is an internist in Oklahoma City, Oklahoma. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Patrick Michael Garrison Jr. practice?
Dr. Garrison practices at 4300 West Memorial Road, Oklahoma City, OK 73120. Dr. Garrison's primary practice is Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma, part of Mercy. Dmand AI also links Dr. Garrison to 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. Patrick Michael Garrison Jr.'s office phone number?
The practice phone on file for Dr. Garrison is (405) 755-1515.
What is Dr. Patrick Michael Garrison Jr.'s medical license number?
Dr. Garrison holds Oklahoma license 23948.
Which hospitals is Dr. Patrick Michael Garrison Jr. affiliated with?
Dr. Garrison practices at Mercy Hospital Oklahoma City in Oklahoma City, Oklahoma. Dr. Garrison is also affiliated with OU Health University of Oklahoma Medical Center.
What medical group is Dr. Patrick Michael Garrison Jr. part of?
Dr. Garrison is linked to Mercy Clinic Oklahoma Communities. Dmand AI links Dr. Garrison to 1 more medical group.
Does Dr. Patrick Michael Garrison Jr. accept Medicare?
Yes. CMS data shows Dr. Garrison billed Medicare for 844 services in 2024, and Dr. Garrison accepts Medicare assignment.
Does Dr. Patrick Michael Garrison Jr. offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Garrison as offering telehealth services.
How many Medicare patients does Dr. Patrick Michael Garrison Jr. see?
CMS counts 177 Medicare patients who saw Dr. Garrison in 2024, with an average age of 73.
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What services does Dr. Patrick Michael Garrison Jr. bill to Medicare?
In 2024, Dr. Garrison's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).
Where did Dr. Patrick Michael Garrison Jr. go to medical school?
Dr. Garrison graduated from University of Oklahoma College of Medicine in 2004.
What drugs does Dr. Patrick Michael Garrison Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Garrison's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Rosuvastatin Calcium.
Has Dr. Patrick Michael Garrison Jr. received payments from drug or device companies?
CMS Open Payments shows $16,280 in general payments to Dr. Garrison from 58 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Patrick Michael Garrison Jr. been practicing?
Dr. Garrison graduated from medical school in 2004, 22 years ago.
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