Dr. Christopher Michael Purmer, MD
- Medicare services, 2024
- 6,169
- Medicare patients, 2024
- 2,108
- Part D claims, 2024
- 8,893
- MIPS score, 2024
- 82
- Hospital affiliations
- 2
- Practice address
- 2190 N Lynn Rd, Thousand Oaks, CA 91360
- Practice phone
- Call (805) 497-8411
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ciano Ambulatory Surgical Facility (Closed)
Thousand Oaks, California
Find Dr. Purmer'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. Christopher Michael Purmer is a cardiologist in Thousand Oaks, California
Dr. Purmer practices at Ciano Ambulatory Surgical Facility (Closed) in Thousand Oaks, California.
Dr. Purmer's NPI, 1124058169, was assigned on July 4, 2006. Dr. Purmer graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1990. Dr. Purmer holds California license G74571.
- NPI
- 1124058169NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840188223
- NPI enumeration date
- July 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 497-8411
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher Michael Purmer practices at Ciano Ambulatory Surgical Facility (Closed) in Thousand Oaks, California
Dr. Purmer's primary practice is Ciano Ambulatory Surgical Facility (Closed), at 2190 N Lynn Rd, Thousand Oaks, CA 91360 in Ventura County. The practice phone is (805) 497-8411.
- Ciano Ambulatory Surgical Facility (Closed)2190 N Lynn Rd, Thousand Oaks, CA 91360 · Ventura CountyPhone(805) 497-8411
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher Michael Purmer is affiliated with 5 sites of care and 1 medical group
Dr. Purmer's primary practice is Ciano Ambulatory Surgical Facility (Closed) in Thousand Oaks, California. Dr. Purmer is also affiliated with Los Robles Regional Medical Center. The medical group on file is Heart Center Cardiology Medical Associates. Dmand AI also links Dr. Purmer to 1 more hospital, 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. Christopher Michael Purmer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Purmer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ciano Ambulatory Surgical Facility (Closed) | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher Michael Purmer is one of 2,375 cardiologists in California
Cardiovascular disease is Dr. Purmer's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Purmer is board certified in cardiovascular disease by the National Board of Physicians and Surgeons. Dmand AI has Dr. Purmer's licenses on file in 2 states: California and Arkansas.
Specialties and state licenses
- Cardiovascular disease, CaliforniaPrimary
- Arkansas license
Clinical focus
Dmand AI lists aneurysm, aortic atherosclerois, atrial fibrillation and flutter, cardiomyopathy, cerebrovascular disease, chronic hypertension, coronary artery disease and deep vein thrombosis (DVT) among the conditions Dr. Purmer treats.
Cardiologists near Dr. Purmer
Counts of cardiologists 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. Christopher Michael Purmer billed Medicare for 6,169 services in 2024
CMS data shows 6,169 Medicare services from Dr. Purmer across 21 procedure codes in 2024, for 2,108 Medicare patients. Medicare paid $553,397 for them.
Dr. Purmer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3,6332024: 3,15013%
- Tests and treatments
- 2023: 3,1912024: 3,0195%
- Lab and pathology
- 2023: 472024: 0100%
- Surgery
- 2023: 152024: 0100%
Where Dr. Purmer's Medicare services took place, 2024
- In an office6,11099%
- In a facility591%
Dr. Purmer compared with the California median for cardiologists, 2024
- Dr. Purmer
- California median
- Medicare services
- 6,169vs 1,5604.0 times
- Medicare patients
- 2,108vs 6443.3 times
- Part D claims
- 8,546vs 1,4106.1 times
Medians across 2,237 cardiologists in California with Dmand AI profiles that report each measure.
Dr. Purmer'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Purmer and other cardiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Michael Purmer treated 2,108 Medicare patients in 2024, average age 79
CMS counts 2,108 Medicare patients who saw Dr. Purmer in 2024. The largest group is 75 to 84, with 1,011 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 3% are also on Medicaid. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Purmer's median patient age at 79, with 39% women.
Dr. Purmer's Medicare patients by age, 2024
Dr. Purmer's Medicare patients by sex, 2024
- Women1,02048%
- Men1,08852%
Chronic conditions among Dr. Purmer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease49%
- Atrial fibrillation36%
- Diabetes29%
- Chronic kidney disease28%
- Heart failure26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Purmer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women39%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher Michael Purmer wrote 8,893 Medicare Part D claims in 2024
In 2024, Dr. Purmer wrote 8,893 Medicare Part D claims for 1,216 patients. 80% of them were for generic drugs. CMS names the drug for 8,546 of them, across 87 drugs with 11 or more claims each, at $2,086,893 in total drug cost. In 2023, CMS named 8,108 claims across 79 drugs.
Dr. Purmer's Part D claims by kind of drug, 2024
- Generic7,109 claims80%
- Brand-name and other1,784 claims20%
Dr. Purmer'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. Purmer's Part D claims, 2024
- Antibiotics0%34 of 8,893 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: 8,1082024: 8,5465%
Drugs named by CMS: 87 in 2024, 79 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. Christopher Michael Purmer scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Purmer for performance year 2024, reported individually. Dr. Purmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Purmer's MIPS scores, performance year 2024
- 82of 100Final score
- 75of 100Quality
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Christopher Michael Purmer received $30,918 in industry payments from 2016 to 2025
CMS Open Payments shows 1,653 general payments to Dr. Purmer from 61 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Amgen Inc. paid the most, $3,662.
General payments to Dr. Purmer by program year, 2016 to 2025
General payments to Dr. Purmer by kind, 2016 to 2025
- Food and beverage$30,46599%
- Education$4521%
Companies that paid Dr. Purmer 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. Christopher Michael Purmer graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science
Dr. Purmer graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1990.
- Medical school
- Board certified in cardiovascular disease
Source: Dmand AI Professional Profile Data
Dr. Christopher Michael Purmer accepts plans from 12 insurance carriers
Dr. Purmer is in network with 12 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Elevance
- Blue Cross Blue Shield of Michigan
- HCSC
- Alliant Health Plans
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- +4 more carriersWith a free account
Plan types Dr. Purmer accepts, by number of carriers
- PPO7
- HMO6
- EPO4
- Medicare3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Christopher Michael Purmer'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)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. Christopher Michael Purmer
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. Christopher Michael Purmer's NPI number?
Dr. Christopher Michael Purmer's NPI number is 1124058169. It was assigned on July 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Michael Purmer?
Dr. Christopher Michael Purmer is a cardiologist in Thousand Oaks, California. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Christopher Michael Purmer practice?
Dr. Purmer practices at 2190 N Lynn Rd, Thousand Oaks, CA 91360. Dr. Purmer's primary practice is Ciano Ambulatory Surgical Facility (Closed) in Thousand Oaks, California. Dmand AI also links Dr. Purmer to 1 hospital, 1 group practice or clinic and 1 home health agency.
What is Dr. Christopher Michael Purmer's office phone number?
The practice phone on file for Dr. Purmer is (805) 497-8411.
What is Dr. Christopher Michael Purmer's medical license number?
Dr. Purmer holds California license G74571, one of the licenses on file in 2 states.
Which states has Dr. Christopher Michael Purmer been licensed in?
Dmand AI has state licenses on file for Dr. Purmer in California (1992 to 2026) and Arkansas (1996 to 1999).
Which hospitals is Dr. Christopher Michael Purmer affiliated with?
Dr. Purmer is affiliated with Los Robles Regional Medical Center. Dmand AI links Dr. Purmer to 1 more hospital.
What medical group is Dr. Christopher Michael Purmer part of?
Dr. Purmer is linked to Heart Center Cardiology Medical Associates.
Does Dr. Christopher Michael Purmer accept Medicare?
Yes. CMS data shows Dr. Purmer billed Medicare for 6,169 services in 2024, and Dr. Purmer accepts Medicare assignment.
What is Dr. Christopher Michael Purmer's MIPS score?
Dr. Purmer's MIPS final score for performance year 2024 is 82 out of 100, reported individually.
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How many Medicare patients does Dr. Christopher Michael Purmer see?
CMS counts 2,108 Medicare patients who saw Dr. Purmer in 2024, with an average age of 79.
Is Dr. Christopher Michael Purmer board certified?
Yes. Dr. Purmer is board certified in cardiovascular disease by the National Board of Physicians and Surgeons.
What services does Dr. Christopher Michael Purmer bill to Medicare?
In 2024, Dr. Purmer's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93306) and heart test or procedure (93000).
Where did Dr. Christopher Michael Purmer go to medical school?
Dr. Purmer graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 1990.
What drugs does Dr. Christopher Michael Purmer prescribe most?
In 2024 Medicare Part D data, Dr. Purmer's most prescribed drugs by claims were Rosuvastatin Calcium, Atorvastatin Calcium and Eliquis.
Has Dr. Christopher Michael Purmer received payments from drug or device companies?
CMS Open Payments shows $30,918 in general payments to Dr. Purmer from 61 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Christopher Michael Purmer been practicing?
Dr. Purmer graduated from medical school in 1990, 36 years ago.
What insurance does Dr. Christopher Michael Purmer accept?
Dr. Purmer is in network with 12 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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