Dr. Christine Sarena Hessler, MD
- Medicare services, 2024
- 41
- Medicare patients, 2024
- 55
- Part D claims, 2022
- 83
- Publications
- 4
- Hospital affiliations
- 2
- Practice address
- 2975 N Sycamore Dr, Simi Valley, CA 93065
- Practice phone
- Call (805) 955-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hessler'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. Christine Sarena Hessler is a neurologist in Simi Valley, California
Dr. Hessler practices at Adventist Health Simi Valley in Simi Valley, California, part of Adventist Health.
Dr. Hessler's NPI, 1134495880, was assigned on March 27, 2012. Dr. Hessler graduated from UCSF School of Medicine in 2012. Dr. Hessler holds California license A128573.
- NPI
- 1134495880NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587956669
- NPI enumeration date
- March 27, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (805) 955-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christine Sarena Hessler practices at Adventist Health Simi Valley in Simi Valley, California
Dr. Hessler's primary practice is Adventist Health Simi Valley, at 2975 N Sycamore Dr, Simi Valley, CA 93065 in Ventura County. The practice phone is (805) 955-6000.
- Adventist Health Simi Valley2975 N Sycamore Dr, Simi Valley, CA 93065 · Ventura CountyPhone(805) 955-6000
Source: Dmand AI Affiliation Data
Dr. Christine Sarena Hessler is affiliated with 6 sites of care and 5 medical groups
Dr. Hessler's primary practice is Adventist Health Simi Valley in Simi Valley, California, part of Adventist Health. Dr. Hessler is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. The medical group on file is Ventura County Medical Center. Dmand AI also links Dr. Hessler to 4 more medical groups, 3 group practices and clinics and 1 community health center, 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. Christine Sarena Hessler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hessler practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Simi Valley | Available with a free account |
| +5 more sites and 4 medical groups | 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 Adventist Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Christine Sarena Hessler is one of 2,207 neurologists in California
Neurology is Dr. Hessler's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Hessler is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Hessler's licenses on file in 14 states: California, Delaware, New Mexico, Washington, Florida, Oklahoma, Colorado, Indiana, Michigan, Montana, New Hampshire, Oregon, Arkansas and Texas.
Specialties and state licenses
- Neurology, CaliforniaPrimary
- Delaware license
- New Mexico license
- Washington license
- Florida license
- Oklahoma license
- Colorado license
- Indiana license
- Michigan license
- Montana license
- New Hampshire license
- Oregon license
- Arkansas license
- Texas license
Neurologists near Dr. Hessler
Counts of neurologists 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. Christine Sarena Hessler billed Medicare for 41 services in 2024
CMS data shows 41 Medicare services from Dr. Hessler across 2 procedure codes in 2024, for 55 Medicare patients. Medicare paid $4,373 for them. Every service was in an office.
Dr. Hessler's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 672024: 2563%
- Office and hospital visits
- 2023: 02024: 16
Dr. Hessler compared with the California median for neurologists, 2024
- Dr. Hessler
- California median
- Medicare services
- 41vs 40490% below
- Medicare patients
- 55vs 19071% below
- Part D claims
- 83vs 32474% below
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Hessler'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. Hessler?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hessler and other neurologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christine Sarena Hessler treated 55 Medicare patients in 2024, average age 77
CMS counts 55 Medicare patients who saw Dr. Hessler in 2024. The largest group is 75 to 84, with 20 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 36% are also on Medicaid. Their average risk score is 1.91, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Hessler's median patient age at 67, with 62% women.
Dr. Hessler's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hessler's Medicare patients by sex, 2024
- Women3156%
- Men2444%
Chronic conditions among Dr. Hessler's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Stroke or TIA75%
- Diabetes56%
- Chronic kidney disease40%
- Arthritis38%
- Mood disorders36%
- Anxiety33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hessler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women62%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christine Sarena Hessler wrote 83 Medicare Part D claims in 2022
In 2022, Dr. Hessler wrote 83 Medicare Part D claims. They cover 2 drugs, with $20,726 in total drug cost. In 2021, CMS named 62 claims across 2 drugs.
Dr. Hessler's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 622022: 8334%
Drugs named by CMS: 2 in 2022, 2 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Christine Sarena Hessler offers telehealth to Medicare patients
Dr. Hessler accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hessler as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Christine Sarena Hessler has 4 publications on record
Dmand AI links 4 papers to Dr. Hessler, published from 2013 to 2017. 2017 was the busiest year, with 2. Dr. Hessler's most frequent co-authors are John P. Betjemann, MD, Felicia C. Chow and Ari J. Green, MD.
Dr. Hessler's papers by year, 2013 to 2017
Dr. Hessler's most frequent co-authors
Recent publications by Dr. Hessler
See who Dr. Hessler researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hessler works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Christine Sarena Hessler received $46 in industry payments from 2017 to 2024
CMS Open Payments shows 2 general payments to Dr. Hessler from 2 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. Ipsen Biopharmaceuticals, Inc paid the most, $24.
General payments to Dr. Hessler by program year, 2017 to 2024
Companies that paid Dr. Hessler the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christine Sarena Hessler graduated from UCSF School of Medicine
Dr. Hessler graduated from UCSF School of Medicine in 2012.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Dr. Christine Sarena Hessler accepts plans from 15 insurance carriers
Dr. Hessler is in network with 15 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
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Humana
- Regence Health Plans
- Aetna
- +7 more carriersWith a free account
Plan types Dr. Hessler accepts, by number of carriers
- Medicare8
- PPO8
- HMO6
- POS4
- EPO3
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Christine Sarena Hessler'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Christine Sarena Hessler
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. Christine Sarena Hessler's NPI number?
Dr. Christine Sarena Hessler's NPI number is 1134495880. It was assigned on March 27, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Christine Sarena Hessler?
Dr. Christine Sarena Hessler is a neurologist in Simi Valley, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Christine Sarena Hessler practice?
Dr. Hessler practices at 2975 N Sycamore Dr, Simi Valley, CA 93065. Dr. Hessler's primary practice is Adventist Health Simi Valley in Simi Valley, California, part of Adventist Health. Dmand AI also links Dr. Hessler to 4 medical groups, 3 group practices and clinics and 1 community health center.
What is Dr. Christine Sarena Hessler's office phone number?
The practice phone on file for Dr. Hessler is (805) 955-6000.
What is Dr. Christine Sarena Hessler's medical license number?
Dr. Hessler holds California license A128573, one of the licenses on file in 14 states.
Which states has Dr. Christine Sarena Hessler been licensed in?
Dmand AI has state licenses on file for Dr. Hessler in California (2014 to 2026), Delaware (2024 to 2027), New Mexico (2023 to 2027), Washington (2022 to 2027), Florida (2024 to 2026), Oklahoma (2024 to 2026), Colorado (2023 to 2025), Indiana (2022 to 2025), Michigan (2022 to 2025), Montana (2024 to 2025), New Hampshire (2023 to 2025), Oregon (2022 to 2025), Arkansas (2022 to 2024) and Texas (2022 to 2024).
Which hospitals is Dr. Christine Sarena Hessler affiliated with?
Dr. Hessler practices at Adventist Health Simi Valley in Simi Valley, California. Dr. Hessler is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights.
What medical group is Dr. Christine Sarena Hessler part of?
Dr. Hessler is linked to Ventura County Medical Center. Dmand AI links Dr. Hessler to 4 more medical groups.
Does Dr. Christine Sarena Hessler accept Medicare?
Yes. CMS data shows Dr. Hessler billed Medicare for 41 services in 2024, and Dr. Hessler accepts Medicare assignment.
Does Dr. Christine Sarena Hessler offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hessler as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Christine Sarena Hessler see?
CMS counts 55 Medicare patients who saw Dr. Hessler in 2024, with an average age of 77.
Is Dr. Christine Sarena Hessler board certified?
Yes. Dr. Hessler is board certified in neurology by the American Board of Psychiatry and Neurology.
What services does Dr. Christine Sarena Hessler bill to Medicare?
In 2024, Dr. Hessler's most billed Medicare services were medicare service (G0427) and care management and other visits (99451).
Where did Dr. Christine Sarena Hessler go to medical school?
Dr. Hessler graduated from UCSF School of Medicine in 2012.
What drugs does Dr. Christine Sarena Hessler prescribe most?
In 2022 Medicare Part D data, Dr. Hessler's most prescribed drugs by claims were Atorvastatin Calcium and Eliquis.
Has Dr. Christine Sarena Hessler received payments from drug or device companies?
CMS Open Payments shows $46 in general payments to Dr. Hessler from 2 companies from 2017 to 2024. The largest total came from Ipsen Biopharmaceuticals, Inc.
How long has Dr. Christine Sarena Hessler been practicing?
Dr. Hessler graduated from medical school in 2012, 14 years ago.
Does Dr. Christine Sarena Hessler do research?
Dmand AI links 4 publications to Dr. Hessler, published from 2013 to 2017.
Who does Dr. Christine Sarena Hessler publish with?
Dr. Hessler's most frequent co-authors are John P. Betjemann, MD (1 shared paper), Felicia C. Chow (1 shared paper) and Ari J. Green, MD (1 shared paper).
What insurance does Dr. Christine Sarena Hessler accept?
Dr. Hessler is in network with 15 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.
Selling to neurology practices?
See neurologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card