Dr. John James Openshaw, MD
- Medicare services, 2024
- 104
- Medicare patients, 2024
- 50
- Part D claims, 2024
- 19
- Publications
- 37
- Hospital affiliations
- 2
- 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
Primary practice
Find Dr. Openshaw'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. John James Openshaw is an infectious disease specialist in Stanford, California
Dr. Openshaw practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Openshaw's NPI, 1679720460, was assigned on August 22, 2008. Dr. Openshaw graduated from Perelman School of Medicine - Philadelphia in 2008. Dr. Openshaw holds California license A109301.
- NPI
- 1679720460NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597068551
- NPI enumeration date
- August 22, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 723-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John James Openshaw practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Openshaw'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.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. John James Openshaw is affiliated with 2 sites of care and 3 medical groups
Dr. Openshaw's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Openshaw to 1 more hospital and 2 medical groups, each named with a free account. Dr. Openshaw's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John James Openshaw's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Openshaw practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. John James Openshaw is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Openshaw's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Openshaw is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Openshaw's licenses on file in 2 states: California and Vermont.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
- Vermont license
Infectious disease specialists near Dr. Openshaw
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. John James Openshaw billed Medicare for 104 services in 2024
CMS data shows 104 Medicare services from Dr. Openshaw across 3 procedure codes in 2024, for 50 Medicare patients. Medicare paid $9,212 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Openshaw's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1202024: 10413%
Dr. Openshaw compared with the California median for infectious disease specialists, 2024
- Dr. Openshaw
- California median
- Medicare services
- 104vs 42976% below
- Medicare patients
- 50vs 18072% below
Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.
Dr. Openshaw's most billed Medicare procedure codes, 2024
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. Openshaw and other infectious disease specialists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John James Openshaw treated 50 Medicare patients in 2024, average age 73
CMS counts 50 Medicare patients who saw Dr. Openshaw in 2024. The largest group is 65 to 74, with 21 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 42% are also on Medicaid. Their average risk score is 4.19, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Openshaw's median patient age at 57, with 46% women.
Dr. Openshaw's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Openshaw's Medicare patients by sex, 2024
- Women2244%
- Men2856%
Chronic conditions among Dr. Openshaw's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes58%
- Arthritis56%
- Ischemic heart disease56%
- Mood disorders56%
- Depression54%
- Heart failure50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Openshaw's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John James Openshaw wrote 19 Medicare Part D claims in 2024
In 2024, Dr. Openshaw wrote 19 Medicare Part D claims. 100% of them were for generic drugs.
Drug classes CMS tracks in Dr. Openshaw's Part D claims, 2024
- Antibiotics100%19 of 19 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. John James Openshaw takes part in Medicare
Dr. Openshaw accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John James Openshaw has 37 publications on record
Dmand AI links 37 papers to Dr. Openshaw, published from 2008 to 2025. 2020 was the busiest year, with 6. The most frequent topics are COVID-19, SARS-CoV-2 and COVID-19 Vaccines. Dr. Openshaw has published most often in Clin Infect Dis. Dr. Openshaw's most frequent co-authors are Stephen P. Luby, MD, Mark Travassos, MD and James Patrick Watt, MD.
Dr. Openshaw's papers by year, 2015 to 2025
Topics Dr. Openshaw writes about most
- COVID-19
- SARS-CoV-2
- COVID-19 Vaccines
- Pandemics
- California
- COVID-19 Testing
- Bangladesh
- Coronavirus Infections
Dr. Openshaw's most frequent co-authors
- Stephen P. Luby, MD8 shared papers
- Mark Travassos, MD6 shared papers
- James Patrick Watt, MD5 shared papers
Recent publications by Dr. Openshaw
See who Dr. Openshaw researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Openshaw works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John James Openshaw graduated from Perelman School of Medicine - Philadelphia
Dr. Openshaw graduated from Perelman School of Medicine - Philadelphia in 2008.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John James Openshaw accepts plans from 9 insurance carriers
Dr. Openshaw is in network with 9 carriers, including Excellus BlueCross BlueShield, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +1 more carriersWith a free account
Plan types Dr. Openshaw accepts, by number of carriers
- Medicare6
- PPO5
- HMO3
- POS3
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. John James Openshaw'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| 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. John James Openshaw
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. John James Openshaw's NPI number?
Dr. John James Openshaw's NPI number is 1679720460. It was assigned on August 22, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. John James Openshaw?
Dr. John James Openshaw is an infectious disease specialist in Stanford, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. John James Openshaw practice?
Dr. Openshaw practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Openshaw's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Openshaw to 1 hospital and 2 medical groups.
What is Dr. John James Openshaw's office phone number?
The practice phone on file for Dr. Openshaw is (650) 723-4000.
What is Dr. John James Openshaw's medical license number?
Dr. Openshaw holds California license A109301, one of the licenses on file in 2 states.
Which states has Dr. John James Openshaw been licensed in?
Dmand AI has state licenses on file for Dr. Openshaw in California (2009 to 2027) and Vermont (2022 to 2024).
Which hospitals is Dr. John James Openshaw affiliated with?
Dr. Openshaw practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Openshaw to 1 more hospital.
What medical group is Dr. John James Openshaw part of?
Dr. Openshaw is linked to Stanford Health Care. Dmand AI links Dr. Openshaw to 2 more medical groups.
Does Dr. John James Openshaw accept Medicare?
Yes. CMS data shows Dr. Openshaw billed Medicare for 104 services in 2024, and Dr. Openshaw accepts Medicare assignment.
How many Medicare patients does Dr. John James Openshaw see?
CMS counts 50 Medicare patients who saw Dr. Openshaw in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
Is Dr. John James Openshaw board certified?
Yes. Dr. Openshaw is board certified in infectious disease by the American Board of Internal Medicine.
What services does Dr. John James Openshaw bill to Medicare?
In 2024, Dr. Openshaw's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99233).
Where did Dr. John James Openshaw go to medical school?
Dr. Openshaw graduated from Perelman School of Medicine - Philadelphia in 2008.
How long has Dr. John James Openshaw been practicing?
Dr. Openshaw graduated from medical school in 2008, 18 years ago.
Does Dr. John James Openshaw do research?
Dmand AI links 37 publications to Dr. Openshaw, published from 2008 to 2025.
Who does Dr. John James Openshaw publish with?
Dr. Openshaw's most frequent co-authors are Stephen P. Luby, MD (8 shared papers), Mark Travassos, MD (6 shared papers) and James Patrick Watt, MD (5 shared papers).
What insurance does Dr. John James Openshaw accept?
Dr. Openshaw is in network with 9 carriers, including Excellus BlueCross BlueShield, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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