Med Image Anal
Dr. Stefan Fred Klein, MD
- Medicare services, 2024
- 1,835
- Medicare patients, 2024
- 462
- Part D claims, 2024
- 57
- Publications
- 3
- Hospital affiliations
- 2
- Practice address
- 160 Green Valley Road, Suite 101, Freedom, CA 95019
- Practice phone
- Call (831) 763-9700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Central Coast Surgery Center
Surgery Center - Medicare-Certified · Freedom, California
Find Dr. Klein'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. Stefan Fred Klein is an orthopedic surgeon in Freedom, California
Dr. Klein practices at Central Coast Surgery Center in Freedom, California.
Dr. Klein's NPI, 1871664003, was assigned on November 10, 2006. Dr. Klein graduated from Stanford University School Of Medicine in 1991. Dr. Klein holds California license G75514.
- NPI
- 1871664003NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688777527
- NPI enumeration date
- November 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (831) 763-9700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stefan Fred Klein practices at Central Coast Surgery Center in Freedom, California
Dr. Klein's primary practice is Central Coast Surgery Center, at 160 Green Valley Road, Suite 101, Freedom, CA 95019. The practice phone is (831) 763-9700.
- Central Coast Surgery Center160 Green Valley Road, Suite 101, Freedom, CA 95019Phone(831) 763-9700
Source: Dmand AI Affiliation Data
Dr. Stefan Fred Klein is affiliated with 3 sites of care and 1 medical group
Dr. Klein's primary practice is Central Coast Surgery Center in Freedom, California. Dr. Klein is also affiliated with Dignity Health - Dominican Hospital. The medical group on file is Hazel Hawkins Memorial Hospital. Dmand AI also links Dr. Klein to 1 more hospital, named with a free account. Dr. Klein's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stefan Fred Klein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Klein practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Central Coast Surgery Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stefan Fred Klein is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Klein's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Klein is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Klein is licensed in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists arm, wrist, hand fracture and dislocation, arthritis, carpal tunnel syndrome, enthesopathy in arms, hand joint or tendon inflammation, joint cyst, joint pain and minor injury to a limb among the conditions Dr. Klein treats.
Orthopedic surgeons near Dr. Klein
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. Stefan Fred Klein billed Medicare for 1,835 services in 2024
CMS data shows 1,835 Medicare services from Dr. Klein across 18 procedure codes in 2024, for 462 Medicare patients. Medicare paid $130,250 for them.
Dr. Klein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0122024: 83318%
- Surgery
- 2023: 5872024: 5487%
- Drugs given in the office
- 2023: 4092024: 28929%
- Imaging
- 2023: 2412024: 16532%
Where Dr. Klein's Medicare services took place, 2024
- In an office1,57886%
- In a facility25714%
Dr. Klein compared with the California median for orthopedic surgeons, 2024
- Dr. Klein
- California median
- Medicare services
- 1,835vs 6832.7 times
- Medicare patients
- 462vs 2152.1 times
- Part D claims
- 45vs 7036% below
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Klein'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. Klein?
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stefan Fred Klein treated 462 Medicare patients in 2024, average age 74
CMS counts 462 Medicare patients who saw Dr. Klein in 2024. The largest group is 65 to 74, with 237 patients. 75% of them have high cholesterol, and 69% have arthritis. 9% are also on Medicaid. Their average risk score is 0.83, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Klein's median patient age at 70, with 57% women.
Dr. Klein's Medicare patients by age, 2024
Dr. Klein's Medicare patients by sex, 2024
- Women26658%
- Men19642%
Chronic conditions among Dr. Klein's Medicare patients, 2024
- High cholesterol75%
- Arthritis69%
- High blood pressure60%
- Mood disorders21%
- Anxiety20%
- Depression18%
- Diabetes18%
- Osteoporosis18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Klein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stefan Fred Klein wrote 57 Medicare Part D claims in 2024
In 2024, Dr. Klein wrote 57 Medicare Part D claims for 50 patients. 100% of them were for generic drugs. CMS names the drug for 45 of them, across 2 drugs with 11 or more claims each, at $169 in total drug cost. In 2023, CMS named 45 claims across 2 drugs.
Dr. Klein'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. Klein's Part D claims, 2024
- Opioids86%49 of 57 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: 452024: 45No change
Drugs named by CMS: 2 in 2024, 2 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. Stefan Fred Klein scored 0 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 0 out of 100 for Dr. Klein for performance year 2024, reported individually. Dr. Klein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 14 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Klein, more than 53% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Klein's MIPS scores, performance year 2024
- 0of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 0of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Klein ranks in Medicare procedure volume
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 53rd percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stefan Fred Klein has 3 publications on record
Dmand AI links 3 papers to Dr. Klein in 2013. 2013 was the busiest year, with 3.
Recent publications by Dr. Klein
See who Dr. Klein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Klein 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. Stefan Fred Klein received $2,734 in industry payments from 2019 to 2024
CMS Open Payments shows 11 general payments to Dr. Klein from 3 drug and device companies from 2019 to 2024. Education make up the largest share, 73% of the total. Arthrex, Inc. paid the most, $2,626.
General payments to Dr. Klein by program year, 2019 to 2024
General payments to Dr. Klein by kind, 2019 to 2024
- Education$1,99473%
- Travel and lodging$38114%
- Food and beverage$35913%
Companies that paid Dr. Klein the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stefan Fred Klein graduated from Stanford University School Of Medicine
Dr. Klein graduated from Stanford University School Of Medicine in 1991.
- Medical school
- Board certified in orthopaedic surgery
- Board certified in surgery of the hand
Source: Dmand AI Professional Profile Data
Dr. Stefan Fred Klein accepts plans from 10 insurance carriers
Dr. Klein is in network with 10 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- +2 more carriersWith a free account
Plan types Dr. Klein accepts, by number of carriers
- Medicare7
- PPO7
- POS5
- HMO4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Stefan Fred Klein'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 |
| 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. Stefan Fred Klein
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. Stefan Fred Klein's NPI number?
Dr. Stefan Fred Klein's NPI number is 1871664003. It was assigned on November 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stefan Fred Klein?
Dr. Stefan Fred Klein is an orthopedic surgeon in Freedom, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Stefan Fred Klein practice?
Dr. Klein practices at 160 Green Valley Road, Suite 101, Freedom, CA 95019. Dr. Klein's primary practice is Central Coast Surgery Center in Freedom, California. Dmand AI also links Dr. Klein to 1 hospital.
What is Dr. Stefan Fred Klein's office phone number?
The practice phone on file for Dr. Klein is (831) 763-9700.
What is Dr. Stefan Fred Klein's medical license number?
Dr. Klein holds California license G75514.
Which hospitals is Dr. Stefan Fred Klein affiliated with?
Dr. Klein is affiliated with Dignity Health - Dominican Hospital. Dmand AI links Dr. Klein to 1 more hospital.
What medical group is Dr. Stefan Fred Klein part of?
Dr. Klein is linked to Hazel Hawkins Memorial Hospital.
Does Dr. Stefan Fred Klein accept Medicare?
Yes. CMS data shows Dr. Klein billed Medicare for 1,835 services in 2024, and Dr. Klein accepts Medicare assignment.
What is Dr. Stefan Fred Klein's MIPS score?
Dr. Klein's MIPS final score for performance year 2024 is 0 out of 100, reported individually.
How many Medicare patients does Dr. Stefan Fred Klein see?
CMS counts 462 Medicare patients who saw Dr. Klein in 2024, with an average age of 74.
Show 8 more questionsShow fewer questions
Is Dr. Stefan Fred Klein board certified?
Yes. Dr. Klein is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. Stefan Fred Klein bill to Medicare?
In 2024, Dr. Klein's most billed Medicare services were office visit, established patient (99213), injected or infused drug (J3301) and office visit, new patient (99203).
Where did Dr. Stefan Fred Klein go to medical school?
Dr. Klein graduated from Stanford University School Of Medicine in 1991.
What drugs does Dr. Stefan Fred Klein prescribe most?
In 2024 Medicare Part D data, Dr. Klein's most prescribed drugs by claims were Tramadol HCl and Hydrocodone-Acetaminophen.
Has Dr. Stefan Fred Klein received payments from drug or device companies?
CMS Open Payments shows $2,734 in general payments to Dr. Klein from 3 companies from 2019 to 2024. The largest total came from Arthrex, Inc.
How long has Dr. Stefan Fred Klein been practicing?
Dr. Klein graduated from medical school in 1991, 35 years ago.
Does Dr. Stefan Fred Klein do research?
Dmand AI links 3 publications to Dr. Klein.
What insurance does Dr. Stefan Fred Klein accept?
Dr. Klein is in network with 10 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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