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Dr. Mark E. Schakel II, MD
NPI1083657654
- Medicare services, 2024
- 9,669
- Medicare patients, 2024
- 513
- Part D claims, 2024
- 436
- Publications
- 1
- MIPS score, 2024
- 92
- Practice address
- 1405 Montgomery Dr, Santa Rosa, CA 95405
- Practice phone
- Call (707) 546-1922
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Santa Rosa Orthopaedic Medical Group, Inc.
Santa Rosa, California
Find Dr. Schakel's professional email, personal email and mobile number
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Dr. Mark E. Schakel II is an orthopedic surgeon in Santa Rosa, California
Dr. Schakel practices at Santa Rosa Orthopaedic Medical Group, Inc. in Santa Rosa, California.
Dr. Schakel's NPI, 1083657654, was assigned on June 13, 2006. Dr. Schakel graduated from Carver College of Medicine in 1981. Dr. Schakel holds California license A43400.
NPI and contact details
- NPI
- 1083657654NPI Registry (opens in a new tab)
- NPI enumeration date
- June 13, 2006
- NPI status
- Active
- Practice phone
- (707) 546-1922
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mark E. Schakel II practices at Santa Rosa Orthopaedic Medical Group, Inc. in Santa Rosa, California
Dr. Schakel's primary practice is Santa Rosa Orthopaedic Medical Group, Inc., at 1405 Montgomery Dr, Santa Rosa, CA 95405 in Sonoma County. The practice phone is (707) 546-1922.
- Santa Rosa Orthopaedic Medical Group, Inc.1405 Montgomery Dr, Santa Rosa, CA 95405 · Sonoma CountyPhone(707) 546-1922
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark E. Schakel II is affiliated with 2 sites of care and 1 medical group
Dr. Schakel's primary practice is Santa Rosa Orthopaedic Medical Group, Inc. in Santa Rosa, California. The medical group on file is Santa Rosa Orthopaedics. Dmand AI also links Dr. Schakel to 1 more group practice or clinic, named with a free account.
Santa Rosa Orthopaedic Medical Group, Inc.Primary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark E. Schakel II's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schakel practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Rosa Orthopaedic Medical Group, Inc. | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark E. Schakel II is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Schakel's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Schakel is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Schakel's licenses on file in 4 states: California, Oregon, Florida and Maryland.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Oregon license
- Florida license
- Maryland license
Clinical focus
Dmand AI lists arthritis, broken or dislocated ankle/ or foot, bursitis, carpal tunnel syndrome, enthesopathy in foot or ankle, joint cyst, joint pain and knee arthroscopy among the conditions Dr. Schakel treats.
Orthopedic surgeons near Dr. Schakel
Counts of orthopedic 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. Mark E. Schakel II billed Medicare for 9,669 services in 2024
CMS data shows 9,669 Medicare services from Dr. Schakel across 26 procedure codes in 2024, for 513 Medicare patients. Medicare paid $190,776 for them.
Medicare services, 20249,669
Medicare patients513
Paid by Medicare$190,776
Procedure codes26
Dr. Schakel's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2602024: 6,6032440%
- Office and hospital visits
- 2023: 1,3602024: 1,3173%
- Imaging
- 2023: 1,2532024: 1,2963%
- Surgery
- 2023: 4732024: 4309%
- Other services
- 2023: 952024: 2376%
- Tests and treatments
- 2023: 4112024: 0100%
Where Dr. Schakel's Medicare services took place, 2024
- In an office9,61499%
- In a facility551%
Dr. Schakel compared with the California median for orthopedic surgeons, 2024
- Dr. Schakel
- California median
- Medicare services
- 9,669vs 68314.2 times
- Medicare patients
- 513vs 2152.4 times
- Part D claims
- 341vs 704.9 times
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Schakel'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. Schakel?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schakel and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark E. Schakel II treated 513 Medicare patients in 2024, average age 74
CMS counts 513 Medicare patients who saw Dr. Schakel in 2024. The largest group is 65 to 74, with 250 patients. 73% of them have high cholesterol, and 69% have arthritis. 12% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Schakel's median patient age at 71, with 64% women.
Medicare patients, 2024513
Average age74
Average risk score0.93
Also on Medicaid12%
Dr. Schakel's Medicare patients by age, 2024
Dr. Schakel's Medicare patients by sex, 2024
- Women33365%
- Men18035%
Chronic conditions among Dr. Schakel's Medicare patients, 2024
- High cholesterol73%
- Arthritis69%
- High blood pressure63%
- Anxiety23%
- Mood disorders22%
- Ischemic heart disease20%
- Osteoporosis20%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Schakel's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark E. Schakel II wrote 436 Medicare Part D claims in 2024
In 2024, Dr. Schakel wrote 436 Medicare Part D claims for 116 patients. 99% of them were for generic drugs. CMS names the drug for 341 of them, across 6 drugs with 11 or more claims each, at $4,955 in total drug cost. In 2023, CMS named 376 claims across 8 drugs.
Part D claims, 2024436
Drugs named by CMS6
Total drug cost$4,955
Part D patients116
Dr. Schakel's Part D claims by kind of drug, 2024
- Generic431 claims99%
- Brand-name and other5 claims1%
Dr. Schakel'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. Schakel's Part D claims, 2024
- Opioids42%183 of 436 claims
- Antibiotics28%122 of 436 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: 3762024: 3419%
Drugs named by CMS: 6 in 2024, 8 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. Mark E. Schakel II scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Schakel for performance year 2024, reported as part of a group.
Dr. Schakel's MIPS scores, performance year 2024
- 92of 100Final score
- 81.9of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mark E. Schakel II has 1 publication on record
Dmand AI links 1 paper to Dr. Schakel. Dr. Schakel's most frequent co-author is Paul C. Dell, MD.
Papers1
Dr. Schakel's most frequent co-authors
Recent publications by Dr. Schakel
See who Dr. Schakel researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Schakel works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark E. Schakel II received $424 in industry payments from 2016 to 2022
CMS Open Payments shows 9 general payments to Dr. Schakel from 7 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $143.
General payments to Dr. Schakel by program year, 2016 to 2022
Companies that paid Dr. Schakel the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark E. Schakel II has 1 award and honors on record
Dmand AI lists 1 award for Dr. Schakel, most recently CMS Stage 1 EHR in 2012.
Awards and honors for Dr. Schakel
- 2012
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Mark E. Schakel II graduated from Carver College of Medicine
Dr. Schakel graduated from Carver College of Medicine in 1981.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Mark E. Schakel II accepts plans from 11 insurance carriers
Dr. Schakel is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Elevance
- Regence Health Plans
- Alliant Health Plans
- +3 more carriersWith a free account
Plan types Dr. Schakel accepts, by number of carriers
- PPO7
- HMO6
- Medicare6
- EPO3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark E. Schakel II'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 | Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Mark E. Schakel II
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. Mark E. Schakel II's NPI number?
Dr. Mark E. Schakel II's NPI number is 1083657654. It was assigned on June 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark E. Schakel II?
Dr. Mark E. Schakel II is an orthopedic surgeon in Santa Rosa, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Mark E. Schakel II practice?
Dr. Schakel practices at 1405 Montgomery Dr, Santa Rosa, CA 95405. Dr. Schakel's primary practice is Santa Rosa Orthopaedic Medical Group, Inc. in Santa Rosa, California. Dmand AI also links Dr. Schakel to 1 group practice or clinic.
What is Dr. Mark E. Schakel II's office phone number?
The practice phone on file for Dr. Schakel is (707) 546-1922.
What is Dr. Mark E. Schakel II's medical license number?
Dr. Schakel holds California license A43400, one of the licenses on file in 4 states.
Which states has Dr. Mark E. Schakel II been licensed in?
Dmand AI has state licenses on file for Dr. Schakel in California (1987 to 2026), Oregon (since 1987), Florida (1983 to 1998) and Maryland (1989 to 1991).
What medical group is Dr. Mark E. Schakel II part of?
Dr. Schakel is linked to Santa Rosa Orthopaedics.
Does Dr. Mark E. Schakel II accept Medicare?
Yes. CMS data shows Dr. Schakel billed Medicare for 9,669 services in 2024.
What is Dr. Mark E. Schakel II's MIPS score?
Dr. Schakel's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mark E. Schakel II see?
CMS counts 513 Medicare patients who saw Dr. Schakel in 2024, with an average age of 74.
Show 9 more questionsShow fewer questions
Is Dr. Mark E. Schakel II board certified?
Yes. Dr. Schakel is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. Mark E. Schakel II bill to Medicare?
In 2024, Dr. Schakel's most billed Medicare services were injected or infused drug (J1010), diagnostic imaging (73630) and office visit, established patient (99213).
Where did Dr. Mark E. Schakel II go to medical school?
Dr. Schakel graduated from Carver College of Medicine in 1981.
What drugs does Dr. Mark E. Schakel II prescribe most?
In 2024 Medicare Part D data, Dr. Schakel's most prescribed drugs by claims were Cephalexin, Hydrocodone-Acetaminophen and Oxycodone-Acetaminophen.
Has Dr. Mark E. Schakel II received payments from drug or device companies?
CMS Open Payments shows $424 in general payments to Dr. Schakel from 7 companies from 2016 to 2022. The largest total came from Stryker Corporation.
How long has Dr. Mark E. Schakel II been practicing?
Dr. Schakel graduated from medical school in 1981, 45 years ago.
Does Dr. Mark E. Schakel II do research?
Dmand AI links 1 publication to Dr. Schakel.
Who does Dr. Mark E. Schakel II publish with?
Dr. Schakel's most frequent co-authors are Paul C. Dell, MD (1 shared paper).
What insurance does Dr. Mark E. Schakel II accept?
Dr. Schakel is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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