Dr. John Leslie Schoonmaker, DO
- Medicare services, 2024
- 650
- Medicare patients, 2024
- 320
- Part D claims, 2024
- 9,561
- Hospital affiliations
- 1
- Industry payments
- $3,908
- Practice address
- 29826 Haun Rd, Menifee, CA 92586
- Practice phone
- Call (951) 925-1449
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Menifee Global Multi-Specialty Group Inc
Menifee, California
Find Dr. Schoonmaker'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. John Leslie Schoonmaker is a family medicine physician in Menifee, California
Dr. Schoonmaker practices at Menifee Global Multi-Specialty Group Inc in Menifee, California.
Dr. Schoonmaker's NPI, 1841231537, was assigned on June 10, 2006. Dr. Schoonmaker graduated from WesternU College of Osteopathic Medicine of the Pacific in 1996. Dr. Schoonmaker holds California license 20A7169.
- NPI
- 1841231537NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759295967
- NPI enumeration date
- June 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 925-1449
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Leslie Schoonmaker practices at Menifee Global Multi-Specialty Group Inc in Menifee, California
Dr. Schoonmaker's primary practice is Menifee Global Multi-Specialty Group Inc, at 29826 Haun Rd, Menifee, CA 92586 in Riverside County. The practice phone is (951) 925-1449.
- Menifee Global Multi-Specialty Group Inc29826 Haun Rd, Menifee, CA 92586 · Riverside CountyPhone(951) 925-1449
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Leslie Schoonmaker is affiliated with 4 sites of care and 3 medical groups
Dr. Schoonmaker's primary practice is Menifee Global Multi-Specialty Group Inc in Menifee, California. Dr. Schoonmaker is also affiliated with Southwest Healthcare Rancho Springs Hospital. The medical group on file is Menifee Global Multi Specialty Group, Inc. Dmand AI also links Dr. Schoonmaker to 2 more medical groups, 1 group practice or clinic and 1 home health agency, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Leslie Schoonmaker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schoonmaker practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Menifee Global Multi-Specialty Group Inc | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Leslie Schoonmaker is one of 15,680 family medicine physicians in California
Family medicine is Dr. Schoonmaker's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Schoonmaker is board certified in 1998 - 2026 by the CA State License. Dr. Schoonmaker is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute sinusitis, acute skin infection, anxiety, arthritis, atrial fibrillation and flutter, bladder disease and bronchitis among the conditions Dr. Schoonmaker treats.
Family medicine physicians near Dr. Schoonmaker
Counts of family medicine physicians 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. John Leslie Schoonmaker billed Medicare for 650 services in 2024
CMS data shows 650 Medicare services from Dr. Schoonmaker across 7 procedure codes in 2024, for 320 Medicare patients. Medicare paid $47,446 for them.
Dr. Schoonmaker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6062024: 5844%
- Other services
- 2023: 442024: 5116%
- Tests and treatments
- 2023: 02024: 15
Where Dr. Schoonmaker's Medicare services took place, 2024
- In an office59491%
- In a facility569%
Dr. Schoonmaker compared with the California median for family medicine physicians, 2024
- Dr. Schoonmaker
- California median
- Medicare services
- 650vs 2462.6 times
- Medicare patients
- 320vs 1182.7 times
- Part D claims
- 8,814vs 83310.6 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Schoonmaker'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. Schoonmaker?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schoonmaker and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Leslie Schoonmaker treated 320 Medicare patients in 2024, average age 69
CMS counts 320 Medicare patients who saw Dr. Schoonmaker in 2024. The largest group is 65 to 74, with 162 patients. 71% of them have high cholesterol, and 70% have high blood pressure. 51% are also on Medicaid. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Schoonmaker's median patient age at 56, with 54% women.
Dr. Schoonmaker's Medicare patients by age, 2024
Dr. Schoonmaker's Medicare patients by sex, 2024
- Women18859%
- Men13241%
Chronic conditions among Dr. Schoonmaker's Medicare patients, 2024
- High cholesterol71%
- High blood pressure70%
- Arthritis40%
- Diabetes40%
- Ischemic heart disease27%
- Chronic kidney disease25%
- Anxiety23%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Schoonmaker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
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. John Leslie Schoonmaker wrote 9,561 Medicare Part D claims in 2024
In 2024, Dr. Schoonmaker wrote 9,561 Medicare Part D claims for 622 patients. 86% of them were for generic drugs. CMS names the drug for 8,814 of them, across 169 drugs with 11 or more claims each, at $746,326 in total drug cost. In 2023, CMS named 8,099 claims across 150 drugs.
Dr. Schoonmaker's Part D claims by kind of drug, 2024
- Generic8,200 claims86%
- Brand-name1,239 claims13%
- Other122 claims1%
Dr. Schoonmaker'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. Schoonmaker's Part D claims, 2024
- Opioids3%328 of 9,561 claims
- Antibiotics1%135 of 9,561 claims
- Antipsychotics, patients 65 and over0%11 of 9,561 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: 8,0992024: 8,8149%
Drugs named by CMS: 169 in 2024, 150 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. John Leslie Schoonmaker takes part in Medicare
Dr. Schoonmaker 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. John Leslie Schoonmaker received $3,908 in industry payments from 2016 to 2025
CMS Open Payments shows 221 general payments to Dr. Schoonmaker from 40 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $521.
General payments to Dr. Schoonmaker by program year, 2016 to 2025
General payments to Dr. Schoonmaker by kind, 2016 to 2025
- Food and beverage$3,88699%
- Education$221%
Companies that paid Dr. Schoonmaker 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. John Leslie Schoonmaker has 1 award and honors on record
Dmand AI lists 1 award for Dr. Schoonmaker, most recently CMS Stage 1 EHR in 2012.
Awards and honors for Dr. Schoonmaker
- 2012
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. John Leslie Schoonmaker graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Schoonmaker graduated from WesternU College of Osteopathic Medicine of the Pacific in 1996. Dr. Schoonmaker is a member of AOA.
- Medical school
- Board certified in 1998 - 2026
Source: Dmand AI Professional Profile Data
Dr. John Leslie Schoonmaker accepts plans from 12 insurance carriers
Dr. Schoonmaker is in network with 12 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Aetna
- Alliant Health Plans
- +4 more carriersWith a free account
Plan types Dr. Schoonmaker accepts, by number of carriers
- Medicare8
- PPO7
- HMO5
- POS3
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. John Leslie Schoonmaker'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. John Leslie Schoonmaker
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. John Leslie Schoonmaker's NPI number?
Dr. John Leslie Schoonmaker's NPI number is 1841231537. It was assigned on June 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Leslie Schoonmaker?
Dr. John Leslie Schoonmaker is a family medicine physician in Menifee, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. John Leslie Schoonmaker practice?
Dr. Schoonmaker practices at 29826 Haun Rd, Menifee, CA 92586. Dr. Schoonmaker's primary practice is Menifee Global Multi-Specialty Group Inc in Menifee, California. Dmand AI also links Dr. Schoonmaker to 2 medical groups, 1 group practice or clinic and 1 home health agency.
What is Dr. John Leslie Schoonmaker's office phone number?
The practice phone on file for Dr. Schoonmaker is (951) 925-1449.
What is Dr. John Leslie Schoonmaker's medical license number?
Dr. Schoonmaker holds California license 20A7169.
Which hospitals is Dr. John Leslie Schoonmaker affiliated with?
Dr. Schoonmaker is affiliated with Southwest Healthcare Rancho Springs Hospital.
What medical group is Dr. John Leslie Schoonmaker part of?
Dr. Schoonmaker is linked to Menifee Global Multi Specialty Group, Inc. Dmand AI links Dr. Schoonmaker to 2 more medical groups.
Does Dr. John Leslie Schoonmaker accept Medicare?
Yes. CMS data shows Dr. Schoonmaker billed Medicare for 650 services in 2024, and Dr. Schoonmaker accepts Medicare assignment.
How many Medicare patients does Dr. John Leslie Schoonmaker see?
CMS counts 320 Medicare patients who saw Dr. Schoonmaker in 2024, with an average age of 69.
Is Dr. John Leslie Schoonmaker board certified?
Yes. Dr. Schoonmaker is board certified in 1998 - 2026 by the CA State License.
Show 6 more questionsShow fewer questions
What services does Dr. John Leslie Schoonmaker bill to Medicare?
In 2024, Dr. Schoonmaker's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and hospital inpatient care (99232).
Where did Dr. John Leslie Schoonmaker go to medical school?
Dr. Schoonmaker graduated from WesternU College of Osteopathic Medicine of the Pacific in 1996.
What drugs does Dr. John Leslie Schoonmaker prescribe most?
In 2024 Medicare Part D data, Dr. Schoonmaker's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metformin HCl.
Has Dr. John Leslie Schoonmaker received payments from drug or device companies?
CMS Open Payments shows $3,908 in general payments to Dr. Schoonmaker from 40 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. John Leslie Schoonmaker been practicing?
Dr. Schoonmaker graduated from medical school in 1996, 30 years ago.
What insurance does Dr. John Leslie Schoonmaker accept?
Dr. Schoonmaker is in network with 12 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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