Joelle Marie Zarzana, OD
- Medicare patients, 2024
- 226
- Part D claims, 2024
- 41
- MIPS score, 2024
- 100
- Affiliated sites
- 3
- Medical groups
- 3
- Practice address
- 696 3rd W St, Sonoma, CA 95476
- Practice phone
- Call (707) 996-1900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mark Schluter MD and Sophia Schluter MD
Sonoma, California
Find Joelle Zarzana'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.
Joelle Marie Zarzana is an optometrist in Sonoma, California
Joelle Zarzana practices at Mark Schluter MD and Sophia Schluter MD in Sonoma, California.
Joelle Zarzana's NPI, 1386794170, was assigned on January 12, 2007. Joelle Zarzana holds California license 12679T.
- NPI
- 1386794170NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698798015
- NPI enumeration date
- January 12, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 996-1900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Joelle Marie Zarzana practices at Mark Schluter MD and Sophia Schluter MD in Sonoma, California
Joelle Zarzana's primary practice is Mark Schluter MD and Sophia Schluter MD, at 696 3rd W St, Sonoma, CA 95476 in Sonoma County. The practice phone is (707) 996-1900.
- Mark Schluter MD and Sophia Schluter MD696 3rd W St, Sonoma, CA 95476 · Sonoma CountyPhone(707) 996-1900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Joelle Marie Zarzana is affiliated with 4 sites of care and 3 medical groups
Joelle Zarzana's primary practice is Mark Schluter MD and Sophia Schluter MD in Sonoma, California. Dmand AI also links Joelle Zarzana to 3 group practices and clinics and 3 medical groups, 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 Joelle Marie Zarzana's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joelle Zarzana practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mark Schluter MD and Sophia Schluter MD | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Joelle Marie Zarzana is one of 7,206 optometrists in California
Optometrist is Joelle Zarzana's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Joelle Zarzana is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Joelle Zarzana
Counts of optometrists 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
Joelle Marie Zarzana treated 226 Medicare patients in 2024, average age 76
CMS counts 226 Medicare patients who saw Joelle Zarzana in 2024. The largest group is 75 to 84, with 105 patients. 72% of them have high cholesterol, and 58% have high blood pressure. 11% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Joelle Zarzana's median patient age at 69, with 57% women.
Joelle Zarzana's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Joelle Zarzana's Medicare patients by sex, 2024
- Women14865%
- Men7835%
Chronic conditions among Joelle Zarzana's Medicare patients, 2024
- High cholesterol72%
- High blood pressure58%
- Arthritis40%
- Osteoporosis21%
- Diabetes20%
- Mood disorders19%
- Cancer17%
- Depression17%
Share of Medicare patients with each condition. A patient can have several.
Joelle Zarzana's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women57%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joelle Marie Zarzana wrote 41 Medicare Part D claims in 2024
In 2024, Joelle Zarzana wrote 41 Medicare Part D claims for 23 patients. 41% of them were for generic drugs.
Joelle Zarzana's Part D claims by kind of drug, 2024
- Generic17 claims41%
- Brand-name24 claims59%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Joelle Marie Zarzana scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Joelle Zarzana for performance year 2024, reported as part of a group. Joelle Zarzana accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Joelle Zarzana's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
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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Sources for Joelle Marie Zarzana'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 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 (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) |
| 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 Joelle Marie Zarzana
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joelle Marie Zarzana's NPI number?
Joelle Marie Zarzana's NPI number is 1386794170. It was assigned on January 12, 2007, and it is active in the NPI Registry.
What does Joelle Marie Zarzana specialize in?
Joelle Marie Zarzana is an optometrist in Sonoma, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Joelle Marie Zarzana practice?
Joelle Zarzana practices at 696 3rd W St, Sonoma, CA 95476. Joelle Zarzana's primary practice is Mark Schluter MD and Sophia Schluter MD in Sonoma, California. Dmand AI also links Joelle Zarzana to 3 group practices and clinics and 3 medical groups.
What is Joelle Marie Zarzana's office phone number?
The practice phone on file for Joelle Zarzana is (707) 996-1900.
What is Joelle Marie Zarzana's medical license number?
Joelle Zarzana holds California license 12679T.
Does Joelle Marie Zarzana accept Medicare?
Yes. CMS lists Joelle Zarzana as accepting Medicare assignment.
What is Joelle Marie Zarzana's MIPS score?
Joelle Zarzana's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Joelle Marie Zarzana see?
CMS counts 226 Medicare patients who saw Joelle Zarzana in 2024, with an average age of 76.
How long has Joelle Marie Zarzana been practicing?
Joelle Zarzana graduated from medical school in 2004, 22 years ago.
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