John Joseph Marcin, OD
- Medicare patients, 2024
- 227
- Part D claims, 2024
- 126
- Industry payments
- $81
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 8370 W Flagler St, Miami, FL 33144
- Practice phone
- Call (321) 434-1981
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Health First Medical Group
Miami, Florida
Find John Marcin'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.
John Joseph Marcin is an optometrist in Miami, Florida
John Marcin practices at Health First Medical Group in Miami, Florida.
John Marcin's NPI, 1619076742, was assigned on September 22, 2006. John Marcin graduated from Ferris State College - College of Optometry in 1981. John Marcin holds Florida license OPC2193.
- NPI
- 1619076742NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698873388
- NPI enumeration date
- September 22, 2006
- NPI status
- Active
- Practice phone
- (321) 434-1981
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
John Joseph Marcin practices at Health First Medical Group in Miami, Florida
John Marcin's primary practice is Health First Medical Group, at 8370 W Flagler St, Miami, FL 33144 in Miami-Dade County. The practice phone is (321) 434-1981.
- Health First Medical Group8370 W Flagler St, Miami, FL 33144 · Miami-Dade CountyPhone(321) 434-1981
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John Joseph Marcin is affiliated with 2 sites of care and 1 medical group
John Marcin's primary practice is Health First Medical Group in Miami, Florida. Dmand AI also links John Marcin to 1 group practice or clinic and 1 medical group, 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 John Joseph Marcin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Marcin practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Health First Medical Group | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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John Joseph Marcin is one of 2,585 optometrists in Florida
Optometrist is John Marcin's primary specialty in the NPI Registry, under taxonomy code 152W00000X. John Marcin is licensed in Florida.
Specialties and state licenses
- Optometrist, FloridaPrimary
Optometrists near John Marcin
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
John Joseph Marcin treated 227 Medicare patients in 2024, average age 74
CMS counts 227 Medicare patients who saw John Marcin in 2024. The largest group is 65 to 74, with 139 patients. 75% of them have high cholesterol, and 71% have high blood pressure. Their average risk score is 0.89, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts John Marcin's median patient age at 74, with 55% women.
John Marcin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
John Marcin's Medicare patients by sex, 2024
- Women12756%
- Men10044%
Chronic conditions among John Marcin's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis41%
- Chronic kidney disease22%
- Anxiety21%
- Diabetes21%
- Ischemic heart disease20%
- Cancer18%
Share of Medicare patients with each condition. A patient can have several.
John Marcin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
John Joseph Marcin wrote 126 Medicare Part D claims in 2024
In 2024, John Marcin wrote 126 Medicare Part D claims for 53 patients. 68% of them were for generic drugs.
John Marcin's Part D claims by kind of drug, 2024
- Generic86 claims68%
- Brand-name40 claims32%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How John Joseph Marcin takes part in Medicare
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Source: Doctors and Clinicians Utilization Data (CMS)
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John Joseph Marcin received $81 in industry payments in 2025
CMS Open Payments shows 2 general payments to John Marcin from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $81.
Companies that paid John Marcin the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
John Joseph Marcin graduated from Ferris State College - College of Optometry
John Marcin graduated from Ferris State College - College of Optometry in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John Joseph Marcin'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 Utilization Data (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 |
| 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 John Joseph Marcin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Joseph Marcin's NPI number?
John Joseph Marcin's NPI number is 1619076742. It was assigned on September 22, 2006, and it is active in the NPI Registry.
What does John Joseph Marcin specialize in?
John Joseph Marcin is an optometrist in Miami, Florida. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does John Joseph Marcin practice?
John Marcin practices at 8370 W Flagler St, Miami, FL 33144. John Marcin's primary practice is Health First Medical Group in Miami, Florida. Dmand AI also links John Marcin to 1 group practice or clinic and 1 medical group.
What is John Joseph Marcin's office phone number?
The practice phone on file for John Marcin is (321) 434-1981.
What is John Joseph Marcin's medical license number?
John Marcin holds Florida license OPC2193.
How many Medicare patients does John Joseph Marcin see?
CMS counts 227 Medicare patients who saw John Marcin in 2024, with an average age of 74.
Where did John Joseph Marcin go to medical school?
John Marcin graduated from Ferris State College - College of Optometry in 1981.
Has John Joseph Marcin received payments from drug or device companies?
CMS Open Payments shows $81 in general payments to John Marcin from 1 company from 2025 to 2025. The largest total came from Alcon Laboratories Inc.
How long has John Joseph Marcin been practicing?
John Marcin graduated from medical school in 1981, 45 years ago.
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