Dr. Mark M. Karas, MD
- Part D claims, 2022
- 15
- Industry payments
- $12
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 900 E Hamilton Ave, Campbell, CA 95008
- Practice phone
- Call (469) 466-7007
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Signify Health
Campbell, California
Find Dr. Karas' 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 M. Karas is a family medicine physician in Campbell, California
Dr. Karas practices at Signify Health in Campbell, California.
Dr. Karas' NPI, 1265471742, was assigned on June 6, 2006. Dr. Karas graduated from University Of Florida College Of Medicine in 1976. Dr. Karas' Pennsylvania license number on file is MD019473E.
- NPI
- 1265471742NPI Registry (opens in a new tab)
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Practice phone
- (469) 466-7007
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mark M. Karas practices at Signify Health in Campbell, California
Dr. Karas' primary practice is Signify Health, at 900 E Hamilton Ave, Campbell, CA 95008 in Santa Clara County. The practice phone is (469) 466-7007.
- Signify Health900 E Hamilton Ave, Campbell, CA 95008 · Santa Clara CountyPhone(469) 466-7007
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark M. Karas is affiliated with 2 sites of care and 1 medical group
Dr. Karas' primary practice is Signify Health in Campbell, California. The medical group on file is Signify Health. Dmand AI also links Dr. Karas to 1 more group practice or clinic, 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 Dr. Mark M. Karas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karas practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Signify Health | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark M. Karas is one of 15,680 family medicine physicians in California
Family medicine is Dr. Karas' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Karas' licenses on file in 2 states: Pennsylvania and Florida.
Specialties and state licenses
- Family medicine, PennsylvaniaPrimary
- Florida license
Family medicine physicians near Dr. Karas
Counts of family 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 M. Karas' patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Karas' median patient age at 75, with 46% women.
Dr. Karas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women46%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Mark M. Karas wrote 15 Medicare Part D claims in 2022
In 2022, Dr. Karas wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $55 in total drug cost. In 2020, CMS named 13 claims across 1 drug.
Dr. Karas' 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, 2020 to 2022
- 2020
- 2022
- Claims for drugs CMS names
- 2020: 132022: 1515%
Drugs named by CMS: 1 in 2022, 1 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Mark M. Karas received $12 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Karas from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $12.
Companies that paid Dr. Karas the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark M. Karas graduated from University Of Florida College Of Medicine
Dr. Karas graduated from University Of Florida College Of Medicine in 1976.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Mark M. Karas accepts plans from 2 insurance carriers
Dr. Karas is in network with 2 carriers, including Highmark and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Highmark
- CMS Medicare
Plan types Dr. Karas accepts, by number of carriers
- Medicare2
- HMO1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark M. Karas'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 M. Karas
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 M. Karas' NPI number?
Dr. Mark M. Karas' NPI number is 1265471742. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark M. Karas?
Dr. Mark M. Karas is a family medicine physician in Campbell, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Mark M. Karas practice?
Dr. Karas practices at 900 E Hamilton Ave, Campbell, CA 95008. Dr. Karas' primary practice is Signify Health in Campbell, California. Dmand AI also links Dr. Karas to 1 group practice or clinic.
What is Dr. Mark M. Karas' office phone number?
The practice phone on file for Dr. Karas is (469) 466-7007.
What is Dr. Mark M. Karas' medical license number?
Dr. Karas' Pennsylvania license number on file is MD019473E, one of the licenses on file in 2 states.
Which states has Dr. Mark M. Karas been licensed in?
Dmand AI has state licenses on file for Dr. Karas in Pennsylvania (1977 to 2022) and Florida (2015 to 2027).
What medical group is Dr. Mark M. Karas part of?
Dr. Karas is linked to Signify Health.
Where did Dr. Mark M. Karas go to medical school?
Dr. Karas graduated from University Of Florida College Of Medicine in 1976.
What drugs does Dr. Mark M. Karas prescribe most?
In 2022 Medicare Part D data, Dr. Karas' most prescribed drugs by claims were Lisinopril.
Has Dr. Mark M. Karas received payments from drug or device companies?
CMS Open Payments shows $12 in general payments to Dr. Karas from 1 company from 2016 to 2016. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Mark M. Karas been practicing?
Dr. Karas graduated from medical school in 1976, 50 years ago.
What insurance does Dr. Mark M. Karas accept?
Dr. Karas is in network with 2 carriers, including Highmark and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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