Dr. Mark Yassa, DO
- Part D claims, 2024
- 52
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- 700 West Oak Street, Kissimmee, FL 34741
- Practice phone
- Call (407) 846-2266
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Yassa'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. Mark Yassa is an emergency medicine physician in Kissimmee, Florida
Dr. Yassa practices at HCA Florida Osceola Hospital in Kissimmee, Florida, part of HCA Healthcare.
Dr. Yassa's NPI, 1306595970, was assigned on March 21, 2022. Dr. Yassa holds Florida license 22350.
- NPI
- 1306595970NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496260614
- NPI enumeration date
- March 21, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (407) 846-2266
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Yassa practices at HCA Florida Osceola Hospital in Kissimmee, Florida
Dr. Yassa's primary practice is HCA Florida Osceola Hospital, at 700 West Oak Street, Kissimmee, FL 34741 in Osceola County. The practice phone is (407) 846-2266.
- HCA Florida Osceola Hospital700 West Oak Street, Kissimmee, FL 34741 · Osceola CountyPhone(407) 846-2266
Source: Dmand AI Affiliation Data
Dr. Mark Yassa is affiliated with 3 sites of care and 2 medical groups
Dr. Yassa's primary practice is HCA Florida Osceola Hospital in Kissimmee, Florida, part of HCA Healthcare. The medical group on file is Emergency Medicine Services of Florida. Dmand AI also links Dr. Yassa to 2 more group practices and clinics and 1 medical group, 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. Mark Yassa's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yassa practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA Florida Osceola Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Yassa is one of 3,847 emergency medicine physicians in Florida
Emergency medicine is Dr. Yassa's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Yassa is licensed in Florida.
Specialties and state licenses
- Emergency medicine, FloridaPrimary
Emergency medicine physicians near Dr. Yassa
Counts of emergency medicine physicians 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 Yassa's patients have a median age of 38
Across all payers, Dmand AI patient panel data puts Dr. Yassa's median patient age at 38, with 59% women.
Dr. Yassa's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women59%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Mark Yassa wrote 52 Medicare Part D claims in 2024
In 2024, Dr. Yassa wrote 52 Medicare Part D claims for 37 patients. 98% of them were for generic drugs.
Dr. Yassa's Part D claims by kind of drug, 2024
- Generic51 claims98%
- Brand-name and other1 claims2%
Drug classes CMS tracks in Dr. Yassa's Part D claims, 2024
- Antibiotics50%26 of 52 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mark Yassa takes part in Medicare
Dr. Yassa accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Sources for Dr. Mark Yassa'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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 Yassa
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 Yassa's NPI number?
Dr. Mark Yassa's NPI number is 1306595970. It was assigned on March 21, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Yassa?
Dr. Mark Yassa is an emergency medicine physician in Kissimmee, Florida. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mark Yassa practice?
Dr. Yassa practices at 700 West Oak Street, Kissimmee, FL 34741. Dr. Yassa's primary practice is HCA Florida Osceola Hospital in Kissimmee, Florida, part of HCA Healthcare. Dmand AI also links Dr. Yassa to 2 group practices and clinics and 1 medical group.
What is Dr. Mark Yassa's office phone number?
The practice phone on file for Dr. Yassa is (407) 846-2266.
What is Dr. Mark Yassa's medical license number?
Dr. Yassa holds Florida license 22350.
Which hospitals is Dr. Mark Yassa affiliated with?
Dr. Yassa practices at HCA Florida Osceola Hospital in Kissimmee, Florida.
What medical group is Dr. Mark Yassa part of?
Dr. Yassa is linked to Emergency Medicine Services of Florida. Dmand AI links Dr. Yassa to 1 more medical group.
Does Dr. Mark Yassa accept Medicare?
Yes. CMS lists Dr. Yassa as accepting Medicare assignment.
How long has Dr. Mark Yassa been practicing?
Dr. Yassa graduated from medical school in 2022, 4 years ago.
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