Dr. Alan J. Marcus, DO
- Medicare services, 2020
- 11
- Part D claims, 2024
- 15
- Publications
- 1
- Industry payments
- $611
- Affiliated sites
- 1
- Practice address
- 415 Us Highway 1 Ste D Suite D, Lake Park, FL 33403-3585
- Practice phone
- Call (561) 845-8333
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Conviva Lake Park
Physician office · Lake Park, Florida
Find Dr. Marcus' professional email, personal email and mobile number
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Dr. Alan J. Marcus is an internist in Santa Rosa, California
Dr. Marcus practices at Conviva Lake Park in Lake Park, Florida.
Dr. Marcus' NPI, 1578522033, was assigned on March 22, 2006. Dr. Marcus graduated from Pcom in 1969. Dr. Marcus holds Florida license OS2461.
- NPI
- 1578522033NPI Registry (opens in a new tab)
- NPI enumeration date
- March 22, 2006
- NPI status
- Active
- Practice phone
- (561) 845-8333
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1969
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Alan J. Marcus practices in Lake Park and Santa Rosa
Dr. Marcus' primary practice is Conviva Lake Park, at 415 Us Highway 1 Ste D Suite D, Lake Park, FL 33403-3585. The practice phone is (561) 845-8333. The NPI Registry lists Dr. Marcus' practice address as 1165 Montgomery Dr, Santa Rosa, CA 95405.
- Conviva Lake ParkPrimary415 Us Highway 1 Ste D Suite D, Lake Park, FL 33403-3585Phone(561) 845-8333
- NPI Registry address1165 Montgomery Dr, Santa Rosa, CA 95405 · Sonoma CountyPhone(561) 845-8333
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Alan J. Marcus is affiliated with 1 site of care
Dr. Marcus' primary practice is Conviva Lake Park in Lake Park, Florida.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Alan J. Marcus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marcus practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Conviva Lake Park | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alan J. Marcus is one of 16,751 internists in California
Internal medicine is Dr. Marcus' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Marcus is board certified in 1970 - 2024 by the FL State License. Dr. Marcus is licensed in Florida.
Specialties and state licenses
- Internal medicine, FloridaPrimary
Internists near Dr. Marcus
Counts of internists 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. Alan J. Marcus billed Medicare for 11 services in 2020
CMS data shows 11 Medicare services from Dr. Marcus across 1 procedure code in 2020. Medicare paid $32 for them. Every service was in an office.
Dr. Marcus' Medicare services by type, 2019 to 2020
- 2019
- 2020
- Surgery
- 2019: 762020: 1186%
- Other services
- 2019: 882020: 0100%
- Office and hospital visits
- 2019: 2522020: 0100%
Dr. Marcus compared with the California median for internists, 2020
- Dr. Marcus
- California median
- Medicare services
- 11vs 36197% below
- Part D claims
- 74vs 42182% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Marcus' most billed Medicare procedure codes, 2020
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. Marcus?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marcus and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alan J. Marcus' patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Marcus' median patient age at 65, with 57% women.
Dr. Marcus' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women57%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. Alan J. Marcus wrote 15 Medicare Part D claims in 2024
In 2024, Dr. Marcus wrote 15 Medicare Part D claims. 100% of them were for generic drugs. They cover 6 drugs, with $2,239 in total drug cost. In 2021, CMS named 186 claims across 11 drugs.
Dr. Marcus' 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: 1862022: 7460%
Drugs named by CMS: 6 in 2022, 11 in 2021.
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
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Dr. Alan J. Marcus has 1 publication on record
Dmand AI links 1 paper to Dr. Marcus.
Recent publications by Dr. Marcus
See who Dr. Marcus researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Marcus works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alan J. Marcus received $611 in industry payments from 2016 to 2023
CMS Open Payments shows 19 general payments to Dr. Marcus from 10 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $134.
General payments to Dr. Marcus by program year, 2016 to 2023
Companies that paid Dr. Marcus the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alan J. Marcus graduated from Pcom
Dr. Marcus graduated from Pcom in 1969. Dr. Marcus is a member of AOA.
- Medical school
- Board certified in 1970 - 2024
- Board certified in active through 1995
- Board certified in 1970 - 1984
Source: Dmand AI Professional Profile Data
Sources for Dr. Alan J. Marcus'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand 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 Data |
| 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) |
| 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 |
| 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. Alan J. Marcus
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. Alan J. Marcus' NPI number?
Dr. Alan J. Marcus' NPI number is 1578522033. It was assigned on March 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Alan J. Marcus?
Dr. Alan J. Marcus is an internist in Santa Rosa, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Alan J. Marcus practice?
Dr. Marcus practices at 415 Us Highway 1 Ste D Suite D, Lake Park, FL 33403-3585. Dr. Marcus also practices at 1165 Montgomery Dr, Santa Rosa, CA 95405. Dr. Marcus' primary practice is Conviva Lake Park in Lake Park, Florida.
What is Dr. Alan J. Marcus' office phone number?
The practice phone on file for Dr. Marcus is (561) 845-8333.
What is Dr. Alan J. Marcus' medical license number?
Dr. Marcus holds Florida license OS2461.
Does Dr. Alan J. Marcus accept Medicare?
Yes. CMS data shows Dr. Marcus billed Medicare for 11 services in 2020.
Is Dr. Alan J. Marcus board certified?
Yes. Dr. Marcus is board certified in 1970 - 2024 by the FL State License.
What services does Dr. Alan J. Marcus bill to Medicare?
In 2020, Dr. Marcus' most billed Medicare services were surgery: heart and blood vessels (36415).
Where did Dr. Alan J. Marcus go to medical school?
Dr. Marcus graduated from Pcom in 1969.
What drugs does Dr. Alan J. Marcus prescribe most?
In 2022 Medicare Part D data, Dr. Marcus' most prescribed drugs by claims were Escitalopram Oxalate, Doxazosin Mesylate and Eplerenone.
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Has Dr. Alan J. Marcus received payments from drug or device companies?
CMS Open Payments shows $611 in general payments to Dr. Marcus from 10 companies from 2016 to 2023. The largest total came from Allergan Inc.
How long has Dr. Alan J. Marcus been practicing?
Dr. Marcus graduated from medical school in 1969, 57 years ago.
Does Dr. Alan J. Marcus do research?
Dmand AI links 1 publication to Dr. Marcus.
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