Dr. Karen Elizabeth Mark, MD, MPH

  • Sacramento, CA
  • Infectious disease specialist
NPI1750491122
Part D claims, 2024
691
Publications
17
Affiliated sites
1
Medical group
1
Insurance carriers
8
Practice address
1500 21st Street, Sacramento, CA 95811
Practice phone
Call (916) 443-3299
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

One Community Health - Sacramento

FQHC - Main Site · Sacramento, California

See all 2 affiliations

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Dr. Karen Elizabeth Mark is an infectious disease specialist in Sacramento, California

Dr. Mark practices at One Community Health - Sacramento in Sacramento, California.

Dr. Mark's NPI, 1750491122, was assigned on August 30, 2006. Dr. Mark graduated from UCSF School of Medicine in 1998. Dr. Mark holds California license A71951.

NPI and contact details
NPI enumeration date
August 30, 2006
NPI status
Active
Practice phone
(916) 443-3299
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
54
Medical school graduation
1998

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Karen Elizabeth Mark practices at One Community Health - Sacramento in Sacramento, California

Dr. Mark's primary practice is One Community Health - Sacramento, at 1500 21st Street, Sacramento, CA 95811. The practice phone is (916) 443-3299.

  • One Community Health - Sacramento
    1500 21st Street, Sacramento, CA 95811Phone(916) 443-3299

Source: Dmand AI Affiliation Data

Dr. Karen Elizabeth Mark is affiliated with 1 site of care and 1 medical group

Dr. Mark's primary practice is One Community Health - Sacramento in Sacramento, California. The medical group on file is One Community Health. Dr. Mark's employer is on file too: a community health center (fqhc).

See all 2 affiliations for Dr. Mark

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Karen Elizabeth Mark's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mark practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
One Community Health - SacramentoAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Karen Elizabeth Mark is one of 1,054 infectious disease specialists in California

Infectious disease is Dr. Mark's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Mark is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Mark's licenses on file in 2 states: California and Washington.

Specialties and state licenses

  • Infectious disease, CaliforniaPrimaryLicense A71951 · 2000 to 2026 · taxonomy 207RI0200X
  • Washington license2003 to 2010

Clinical focus

Dmand AI lists hiv/aids, low blood pressure, muscle pain, fibromyalgia, and limb pain, obesity and upper respiratory infection (URI) among the conditions Dr. Mark treats.

Infectious disease specialists near Dr. Mark

Counts of infectious disease specialists 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. Karen Elizabeth Mark's patients have a median age of 55

Across all payers, Dmand AI patient panel data puts Dr. Mark's median patient age at 55, with 34% women.

Dr. Mark's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 55

Patient panel by sex, all payers

  • Women34%
  • Men66%

Source: Dmand AI Patient Panel Data

Dr. Karen Elizabeth Mark wrote 691 Medicare Part D claims in 2024

In 2024, Dr. Mark wrote 691 Medicare Part D claims for 136 patients. 53% of them were for generic drugs. CMS names the drug for 384 of them, across 16 drugs with 11 or more claims each, at $501,672 in total drug cost. In 2023, CMS named 344 claims across 19 drugs.

Part D claims, 2024691
Drugs named by CMS16
Total drug cost$501,672
Part D patients136

Dr. Mark's Part D claims by kind of drug, 2024

  • Generic369 claims53%
  • Brand-name and other322 claims47%

Dr. Mark's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Mark's Part D claims, 2024

  • Opioids2%14 of 691 claims
  • Antibiotics2%13 of 691 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3442024: 38412%

Drugs named by CMS: 16 in 2024, 19 in 2023.

See all prescribing by Dr. Mark

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. Karen Elizabeth Mark has 17 publications on record

Dmand AI links 17 papers to Dr. Mark, published from 2007 to 2016. 2012 was the busiest year, with 2. The most frequent topics are Herpesvirus 2, Human, Virus Shedding and DNA, Viral. Dr. Mark has published most often in J Acquir Immune Defic Syndr. Dr. Mark's most frequent co-authors are Anna Wald, MD, MPH, Herbert Bryan Slade, MD and Jia Zhu, MD.

Papers17
Years published2007 to 2016

Dr. Mark's papers by year, 2007 to 2016

Topics Dr. Mark writes about most

  • Herpesvirus 2, Human
  • Virus Shedding
  • DNA, Viral
  • Herpes Genitalis
  • Herpes Simplex
  • HIV Infections
  • Ambulatory Care Facilities
  • CD8-Positive T-Lymphocytes

Dr. Mark's most frequent co-authors

Recent publications by Dr. Mark

See all 17 publications and co-authors

See who Dr. Mark researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mark works with, so you can find a warm path to the right infectious disease specialists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Karen Elizabeth Mark graduated from UCSF School of Medicine

Dr. Mark graduated from UCSF School of Medicine in 1998.

  1. Medical schoolUCSF School of Medicine
  2. Board certified in infectious diseaseAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Karen Elizabeth Mark accepts plans from 8 insurance carriers

Dr. Mark is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • Molina

Plan types Dr. Mark accepts, by number of carriers

  1. Medicare8
  2. PPO6
  3. HMO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Karen Elizabeth Mark's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Karen Elizabeth Mark

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. Karen Elizabeth Mark's NPI number?

Dr. Karen Elizabeth Mark's NPI number is 1750491122. It was assigned on August 30, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Karen Elizabeth Mark?

Dr. Karen Elizabeth Mark is an infectious disease specialist in Sacramento, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).

Where does Dr. Karen Elizabeth Mark practice?

Dr. Mark practices at 1500 21st Street, Sacramento, CA 95811. Dr. Mark's primary practice is One Community Health - Sacramento in Sacramento, California.

What is Dr. Karen Elizabeth Mark's office phone number?

The practice phone on file for Dr. Mark is (916) 443-3299.

What is Dr. Karen Elizabeth Mark's medical license number?

Dr. Mark holds California license A71951, one of the licenses on file in 2 states.

Which states has Dr. Karen Elizabeth Mark been licensed in?

Dmand AI has state licenses on file for Dr. Mark in California (2000 to 2026) and Washington (2003 to 2010).

What medical group is Dr. Karen Elizabeth Mark part of?

Dr. Mark is linked to One Community Health.

Is Dr. Karen Elizabeth Mark board certified?

Yes. Dr. Mark is board certified in infectious disease by the American Board of Internal Medicine.

Where did Dr. Karen Elizabeth Mark go to medical school?

Dr. Mark graduated from UCSF School of Medicine in 1998.

What drugs does Dr. Karen Elizabeth Mark prescribe most?

In 2024 Medicare Part D data, Dr. Mark's most prescribed drugs by claims were Biktarvy, Lisinopril and Atorvastatin Calcium.

Show 4 more questionsShow fewer questions

How long has Dr. Karen Elizabeth Mark been practicing?

Dr. Mark graduated from medical school in 1998, 28 years ago.

Does Dr. Karen Elizabeth Mark do research?

Dmand AI links 17 publications to Dr. Mark, published from 2007 to 2016.

Who does Dr. Karen Elizabeth Mark publish with?

Dr. Mark's most frequent co-authors are Anna Wald, MD, MPH (5 shared papers), Herbert Bryan Slade, MD (2 shared papers) and Jia Zhu, MD (2 shared papers).

What insurance does Dr. Karen Elizabeth Mark accept?

Dr. Mark is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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