N Engl J Med
Analgesics, OpioidCOVID-19Fentanyl
Dr. Michael David Stein, MD
NPI1639157274PAC ID1254528599
- Part D claims, 2024
- 4,854
- Publications
- 3
- Industry payments
- $322
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
Find Dr. Stein'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. Michael David Stein is an internist in Santa Clara, California
Dr. Stein practices at Permanente Medical Group Inc in Santa Clara, California.
Dr. Stein's NPI, 1639157274, was assigned on January 4, 2006. Dr. Stein graduated from Stanford University School Of Medicine in 1998. Dr. Stein holds California license C53525.
NPI and contact details
- NPI
- 1639157274NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254528599
- NPI enumeration date
- January 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael David Stein practices at Permanente Medical Group Inc in Santa Clara, California
Dr. Stein's primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael David Stein is affiliated with 2 sites of care and 1 medical group
Dr. Stein's primary practice is Permanente Medical Group Inc in Santa Clara, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Stein to 1 more group practice or clinic, named with a free account.
Permanente Medical Group IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Michael David Stein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stein practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Stein practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael David Stein is one of 16,751 internists in California
Internal medicine is Dr. Stein's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Stein is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Stein's licenses on file in 2 states: California and Nevada.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Nevada license
Internists near Dr. Stein
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
Dr. Michael David Stein's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Stein's median patient age at 62, with 38% women.
Dr. Stein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women38%
- Men62%
Source: Dmand AI Patient Panel Data
Dr. Michael David Stein wrote 4,854 Medicare Part D claims in 2024
In 2024, Dr. Stein wrote 4,854 Medicare Part D claims for 643 patients. 92% of them were for generic drugs. CMS names the drug for 4,351 of them, across 83 drugs with 11 or more claims each, at $181,579 in total drug cost. In 2023, CMS named 3,981 claims across 76 drugs.
Part D claims, 20244,854
Drugs named by CMS83
Total drug cost$181,579
Part D patients643
Dr. Stein's Part D claims by kind of drug, 2024
- Generic4,485 claims92%
- Brand-name345 claims7%
- Other24 claims0%
Dr. Stein'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. Stein's Part D claims, 2024
- Opioids0%12 of 4,854 claims
- Antibiotics2%88 of 4,854 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: 3,9812024: 4,3519%
Drugs named by CMS: 83 in 2024, 76 in 2023.
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
How Dr. Michael David Stein takes part in Medicare
Dr. Stein 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)
For MedTech and pharma teams
Find internists like Dr. Stein by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Michael David Stein has 3 publications on record
Dmand AI links 3 papers to Dr. Stein, published from 2012 to 2024. Dr. Stein's most frequent co-authors are Joshua A. Barocas, MD, Rachel Caspar, MD and Laura C. Fanucchi, MD.
Papers3
Years published2012 to 2024
Dr. Stein's most frequent co-authors
- Joshua A. Barocas, MD1 shared paper
- Rachel Caspar, MD1 shared paper
- Laura C. Fanucchi, MD1 shared paper
Recent publications by Dr. Stein
Antidepressive Agents, Second-GenerationBuprenorphineCitalopram
See who Dr. Stein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stein works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael David Stein received $322 in industry payments from 2016 to 2019
CMS Open Payments shows 5 general payments to Dr. Stein from 2 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Sandoz Inc. paid the most, $182.
General payments to Dr. Stein by program year, 2016 to 2019
Companies that paid Dr. Stein the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael David Stein has 1 award and honors on record
Dmand AI lists 1 award for Dr. Stein, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Stein
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Michael David Stein graduated from Stanford University School Of Medicine
Dr. Stein graduated from Stanford University School Of Medicine in 1998.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Michael David Stein accepts plans from 2 insurance carriers
Dr. Stein is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Stein accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael David Stein'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)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 |
| 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 |
| 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. Michael David Stein
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. Michael David Stein's NPI number?
Dr. Michael David Stein's NPI number is 1639157274. It was assigned on January 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael David Stein?
Dr. Michael David Stein is an internist in Santa Clara, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael David Stein practice?
Dr. Stein practices at 710 Lawrence Expy, Santa Clara, CA 95051. Dr. Stein's primary practice is Permanente Medical Group Inc in Santa Clara, California. Dmand AI also links Dr. Stein to 1 group practice or clinic.
What is Dr. Michael David Stein's office phone number?
The practice phone on file for Dr. Stein is (408) 851-1000.
What is Dr. Michael David Stein's medical license number?
Dr. Stein holds California license C53525, one of the licenses on file in 2 states.
Which states has Dr. Michael David Stein been licensed in?
Dmand AI has state licenses on file for Dr. Stein in California (2008 to 2026) and Nevada (2001 to 2023).
What medical group is Dr. Michael David Stein part of?
Dr. Stein is linked to The Permanente Medical Group, Inc.
Does Dr. Michael David Stein accept Medicare?
Yes. CMS lists Dr. Stein as accepting Medicare assignment.
Is Dr. Michael David Stein board certified?
Yes. Dr. Stein is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Michael David Stein go to medical school?
Dr. Stein graduated from Stanford University School Of Medicine in 1998.
Show 6 more questionsShow fewer questions
What drugs does Dr. Michael David Stein prescribe most?
In 2024 Medicare Part D data, Dr. Stein's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Michael David Stein received payments from drug or device companies?
CMS Open Payments shows $322 in general payments to Dr. Stein from 2 companies from 2016 to 2019. The largest total came from Sandoz Inc.
How long has Dr. Michael David Stein been practicing?
Dr. Stein graduated from medical school in 1998, 28 years ago.
Does Dr. Michael David Stein do research?
Dmand AI links 3 publications to Dr. Stein, published from 2012 to 2024.
Who does Dr. Michael David Stein publish with?
Dr. Stein's most frequent co-authors are Joshua A. Barocas, MD (1 shared paper), Rachel Caspar, MD (1 shared paper) and Laura C. Fanucchi, MD (1 shared paper).
What insurance does Dr. Michael David Stein accept?
Dr. Stein is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card