John Cornelius Penner

  • Stanford, CA
  • Internist
NPI1356845341
Publications
29
Hospital affiliations
2
Insurance carriers
1
State licenses
2
Year NPI issued
2018
Practice address
300 Pasteur Drive, Stanford, CA 94305
Practice phone
Call (650) 723-4000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Stanford Hospital at 300 Pasteur Drive

Hospital · Stanford, California

See all 2 affiliations

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John Cornelius Penner is an internist in Stanford, California

John Penner practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.

John Penner's NPI, 1356845341, was assigned on March 22, 2018. John Penner graduated from Georgetown University School Of Medicine in 2018. John Penner's California license number on file is A167392.

NPI and contact details
NPI enumeration date
March 22, 2018
NPI status
Active
Practice phone
(650) 723-4000
Professional email
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Personal email
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Mobile number
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Sex
Male
Medical school graduation
2018

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

John Cornelius Penner practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California

John Penner's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.

Source: Dmand AI Affiliation Data

John Cornelius Penner is affiliated with 2 sites of care

John Penner's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links John Penner to 1 hospital, named with a free account.

See all 2 affiliations for John Penner

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

Dmand AI tracks the EHR system at John Cornelius Penner's practice

Dmand AI tracks the electronic health record (EHR) system at each site where John Penner practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Stanford Hospital at 300 Pasteur DriveAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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John Cornelius Penner is one of 16,751 internists in California

Internal medicine is John Penner's primary specialty in the NPI Registry, under taxonomy code 207R00000X. John Penner is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has John Penner's licenses on file in 2 states: California and New York.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A167392 · 2019 to 2025 · taxonomy 207R00000X
  • New York license2025 to 2027

Internists near John Penner

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

John Cornelius Penner's patients have a median age of 38

Across all payers, Dmand AI patient panel data puts John Penner's median patient age at 38, with 13% women.

John Penner's patients across all payers

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

Patient panel by age, all payers

Median age 38

Patient panel by sex, all payers

  • Women13%
  • Men88%

Source: Dmand AI Patient Panel Data

John Cornelius Penner has 29 publications on record

Dmand AI links 29 papers to John Penner, published from 2014 to 2025. 2024 was the busiest year, with 5. The most frequent topics are Clinical Competence, Teaching Rounds and Clinical Reasoning. John Penner has published most often in J Gen Intern Med. John Penner's most frequent co-authors are Daniel Joseph Minter, MD, Jennifer Marie Babik, MD and Aaron Lee Berkowitz, MD, PhD.

Papers29
Years published2014 to 2025

John Penner's papers by year, 2014 to 2025

Topics John Penner writes about most

  • Clinical Competence
  • Teaching Rounds
  • Clinical Reasoning
  • Problem Solving
  • Inpatients
  • Academic Medical Centers
  • COVID-19
  • Learning

John Penner's most frequent co-authors

Recent publications by John Penner

See all 29 publications and co-authors

See who John Penner researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who John Penner works with, so you can find a warm path to the right internists.

How network discovery works

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

John Cornelius Penner graduated from Georgetown University School Of Medicine

John Penner graduated from Georgetown University School Of Medicine in 2018.

  1. Medical schoolGeorgetown University School Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

John Cornelius Penner accepts plans from 1 insurance carrier

John Penner is in network with 1 carrier, including Aetna. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • Aetna

Plan types John Penner accepts, by number of carriers

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1
  5. PPO1

Source: Dmand AI Insurance Network Data

Sources for John Cornelius Penner'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
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 John Cornelius Penner

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 Cornelius Penner's NPI number?

John Cornelius Penner's NPI number is 1356845341. It was assigned on March 22, 2018, and it is active in the NPI Registry.

What does John Cornelius Penner specialize in?

John Cornelius Penner is an internist in Stanford, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does John Cornelius Penner practice?

John Penner practices at 300 Pasteur Drive, Stanford, CA 94305. John Penner's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links John Penner to 1 hospital.

What is John Cornelius Penner's office phone number?

The practice phone on file for John Penner is (650) 723-4000.

What is John Cornelius Penner's medical license number?

John Penner's California license number on file is A167392, one of the licenses on file in 2 states.

Which states has John Cornelius Penner been licensed in?

Dmand AI has state licenses on file for John Penner in California (2019 to 2025) and New York (2025 to 2027).

Which hospitals is John Cornelius Penner affiliated with?

John Penner practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links John Penner to 1 more hospital.

Is John Cornelius Penner board certified?

Yes. John Penner is board certified in internal medicine by the American Board of Internal Medicine.

Where did John Cornelius Penner go to medical school?

John Penner graduated from Georgetown University School Of Medicine in 2018.

How long has John Cornelius Penner been practicing?

John Penner graduated from medical school in 2018, 8 years ago.

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Does John Cornelius Penner do research?

Dmand AI links 29 publications to John Penner, published from 2014 to 2025.

Who does John Cornelius Penner publish with?

John Penner's most frequent co-authors are Daniel Joseph Minter, MD (4 shared papers), Jennifer Marie Babik, MD (2 shared papers) and Aaron Lee Berkowitz, MD, PhD (2 shared papers).

What insurance does John Cornelius Penner accept?

John Penner is in network with 1 carrier, including Aetna. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.

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