Dr. Mark L. Gardner, MD
- Medicare services, 2021
- 119
- Part D claims, 2021
- 457
- Publications
- 1
- Industry payments
- $4,009
- Affiliated sites
- 1
- Practice address
- 475 N Forbes St, Lakeport, CA 95453-4725
- Practice phone
- Call (707) 263-6346
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Adventist Heart and Vascular Institute
Physician office · Lakeport, California
Find Dr. Gardner'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 L. Gardner is a cardiologist in Sharon, Pennsylvania
Dr. Gardner practices at Adventist Heart and Vascular Institute in Lakeport, California.
Dr. Gardner's NPI, 1811921174, was assigned on July 10, 2006. Dr. Gardner graduated from New York University School of Medicine in 1986. Dr. Gardner's California license number on file is G73337.
- NPI
- 1811921174NPI Registry (opens in a new tab)
- NPI enumeration date
- July 10, 2006
- NPI status
- Active
- Practice phone
- (707) 263-6346
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mark L. Gardner practices in Lakeport and Sharon
Dr. Gardner's primary practice is Adventist Heart and Vascular Institute, at 475 N Forbes St, Lakeport, CA 95453-4725. The practice phone is (707) 263-6346. The NPI Registry lists Dr. Gardner's practice address as 740 E State St, Sharon, PA 16146.
- Adventist Heart and Vascular InstitutePrimary475 N Forbes St, Lakeport, CA 95453-4725Phone(707) 263-6346
- NPI Registry address740 E State St, Sharon, PA 16146 · Mercer CountyPhone(707) 263-6346
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Mark L. Gardner is affiliated with 1 site of care and 2 medical groups
Dr. Gardner's primary practice is Adventist Heart and Vascular Institute in Lakeport, California. The medical group on file is Adventist Health Ukiah Valley. Dmand AI also links Dr. Gardner to 1 more medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark L. Gardner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gardner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Heart and Vascular Institute | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark L. Gardner is one of 1,206 cardiologists in Pennsylvania
Cardiovascular disease is Dr. Gardner's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Gardner is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Gardner's licenses on file in 3 states: California, Florida and Connecticut.
Specialties and state licenses
- Cardiovascular disease, CaliforniaPrimary
- Florida license
- Connecticut license
Cardiologists near Dr. Gardner
Counts of cardiologists 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 L. Gardner billed Medicare for 119 services in 2021
CMS data shows 119 Medicare services from Dr. Gardner across 2 procedure codes in 2021. Medicare paid $2,632 for them.
Dr. Gardner's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Tests and treatments
- 2020: 9152021: 11987%
- Office and hospital visits
- 2020: 5392021: 0100%
Where Dr. Gardner's Medicare services took place, 2021
- In an office5647%
- In a facility6353%
Dr. Gardner compared with the Pennsylvania median for cardiologists, 2021
- Dr. Gardner
- Pennsylvania median
- Medicare services
- 119vs 1,74593% below
- Part D claims
- 457vs 1,66973% below
Medians across 1,207 cardiologists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Gardner's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gardner and other cardiologists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark L. Gardner's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Gardner's median patient age at 70, with 22% women.
Dr. Gardner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women22%
- Men78%
Source: Dmand AI Patient Panel Data
Dr. Mark L. Gardner wrote 457 Medicare Part D claims in 2021
In 2021, Dr. Gardner wrote 457 Medicare Part D claims. They cover 18 drugs, with $68,787 in total drug cost. In 2020, CMS named 1,486 claims across 29 drugs.
Dr. Gardner's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 1,4862021: 45769%
Drugs named by CMS: 18 in 2021, 29 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Mark L. Gardner has 1 publication on record
Dmand AI links 1 paper to Dr. Gardner.
Recent publications by Dr. Gardner
See who Dr. Gardner researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gardner works with, so you can find a warm path to the right cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark L. Gardner received $4,009 in industry payments from 2016 to 2021
CMS Open Payments shows 53 general payments to Dr. Gardner from 13 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 74% of the total. Biotronik Inc. paid the most, $2,803.
General payments to Dr. Gardner by program year, 2016 to 2021
General payments to Dr. Gardner by kind, 2016 to 2021
- Food and beverage$2,97074%
- Travel and lodging$1,03926%
Companies that paid Dr. Gardner the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark L. Gardner has 11 awards and honors on record
Dmand AI lists 11 awards for Dr. Gardner, most recently Regional Top Doctor in 2019.
Awards and honors for Dr. Gardner
- 2019
- Regional Top Doctor
- 2013
- ACP Fellow
- 2002
- Consumers' Guide to Top Doctors
- 1998
- "Best Doctors in Florida"
- Honorary Chairman-Palm Beach County, BMH Gala Fund Raiser
- 1996
- ACC Fellow
Source: Dmand AI Professional Profile Data
Dr. Mark L. Gardner graduated from New York University School of Medicine
Dr. Gardner graduated from New York University School of Medicine in 1986. Dr. Gardner is a member of ACC and ACP.
- Medical school
- Board certified in cardiovascular disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark L. Gardner'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) |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Mark L. Gardner
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 L. Gardner's NPI number?
Dr. Mark L. Gardner's NPI number is 1811921174. It was assigned on July 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark L. Gardner?
Dr. Mark L. Gardner is a cardiologist in Sharon, Pennsylvania. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Mark L. Gardner practice?
Dr. Gardner practices at 475 N Forbes St, Lakeport, CA 95453-4725. Dr. Gardner also practices at 740 E State St, Sharon, PA 16146. Dr. Gardner's primary practice is Adventist Heart and Vascular Institute in Lakeport, California. Dmand AI also links Dr. Gardner to 1 medical group.
What is Dr. Mark L. Gardner's office phone number?
The practice phone on file for Dr. Gardner is (707) 263-6346.
What is Dr. Mark L. Gardner's medical license number?
Dr. Gardner's California license number on file is G73337, one of the licenses on file in 3 states.
Which states has Dr. Mark L. Gardner been licensed in?
Dmand AI has state licenses on file for Dr. Gardner in California (1992 to 2025), Florida (1994 to 2021) and Connecticut (1988 to 1992).
What medical group is Dr. Mark L. Gardner part of?
Dr. Gardner is linked to Adventist Health Ukiah Valley. Dmand AI links Dr. Gardner to 1 more medical group.
Does Dr. Mark L. Gardner accept Medicare?
Yes. CMS data shows Dr. Gardner billed Medicare for 119 services in 2021.
Is Dr. Mark L. Gardner board certified?
Yes. Dr. Gardner is board certified in cardiovascular disease by the American Board of Internal Medicine.
What services does Dr. Mark L. Gardner bill to Medicare?
In 2021, Dr. Gardner's most billed Medicare services were heart test or procedure (93306) and heart test or procedure (93005).
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Where did Dr. Mark L. Gardner go to medical school?
Dr. Gardner graduated from New York University School of Medicine in 1986.
What drugs does Dr. Mark L. Gardner prescribe most?
In 2021 Medicare Part D data, Dr. Gardner's most prescribed drugs by claims were Amlodipine Besylate, Metoprolol Succinate and Atorvastatin Calcium.
Has Dr. Mark L. Gardner received payments from drug or device companies?
CMS Open Payments shows $4,009 in general payments to Dr. Gardner from 13 companies from 2016 to 2021. The largest total came from Biotronik Inc.
How long has Dr. Mark L. Gardner been practicing?
Dr. Gardner graduated from medical school in 1986, 40 years ago.
Does Dr. Mark L. Gardner do research?
Dmand AI links 1 publication to Dr. Gardner.
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