Dr. Michael Adam Pfeffer, MD

  • Stanford, CA
  • Internist
NPI1952434607PAC ID6103911961
Medicare services, 2024
28
Medicare patients, 2024
22
Publications
16
MIPS score, 2024
89
Hospital affiliations
2
Practice address
300 Pasteur Drive, Stanford, CA 94305
Practice phone
Call (650) 723-4000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Stanford Hospital at 300 Pasteur Drive

Hospital · Stanford, California

See all 4 affiliations

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Dr. Michael Adam Pfeffer is an internist in Stanford, California

Dr. Pfeffer practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.

Dr. Pfeffer's NPI, 1952434607, was assigned on March 13, 2007. Dr. Pfeffer graduated from Weill Cornell Medicine in 2004. Dr. Pfeffer's California license number on file is A93075.

NPI and contact details
Medicare PAC ID
6103911961
NPI enumeration date
March 13, 2007
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
48
Medical school graduation
2004

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Michael Adam Pfeffer practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California

Dr. Pfeffer'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

Dr. Michael Adam Pfeffer is affiliated with 2 sites of care and 2 medical groups

Dr. Pfeffer'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. Pfeffer to 1 more hospital and 1 medical group, each named with a free account. Dr. Pfeffer's employer is on file too: a hospital.

See all 4 affiliations for Dr. Pfeffer

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

Dmand AI tracks the EHR system at Dr. Michael Adam Pfeffer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pfeffer 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 site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Michael Adam Pfeffer is one of 16,751 internists in California

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

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A93075 · 2005 to 2025 · taxonomy 207R00000X
  • Hawaii license2008 to 2012

Clinical focus

Dmand AI lists urinary tract infection among the conditions Dr. Pfeffer treats.

Internists near Dr. Pfeffer

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 Adam Pfeffer billed Medicare for 28 services in 2024

CMS data shows 28 Medicare services from Dr. Pfeffer across 1 procedure code in 2024, for 22 Medicare patients. Medicare paid $2,981 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202428
Medicare patients22
Paid by Medicare$2,981
Procedure codes1

Dr. Pfeffer's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1232024: 2877%

Dr. Pfeffer compared with the California median for internists, 2024

  • Dr. Pfeffer
  • California median
Medicare services
28vs 36192% below
Medicare patients
22vs 15185% below

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Pfeffer'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.

See all procedures by Dr. Pfeffer

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pfeffer and other internists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Michael Adam Pfeffer treated 22 Medicare patients in 2024, average age 70

CMS counts 22 Medicare patients who saw Dr. Pfeffer in 2024. 75% of them have high blood pressure, and 73% have high cholesterol. Their average risk score is 3.18, 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. Pfeffer's median patient age at 59, with 49% women.

Medicare patients, 202422
Average age70
Average risk score3.18

Chronic conditions among Dr. Pfeffer's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol73%
  3. Chronic kidney disease59%
  4. Diabetes55%
  5. Anxiety50%
  6. Arthritis50%

Share of Medicare patients with each condition. A patient can have several.

Dr. Pfeffer's patients across all payers

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

Patient panel by age, all payers

Median age 59

Patient panel by sex, all payers

  • Women49%
  • Men46%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Michael Adam Pfeffer scored 89 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Pfeffer for performance year 2024, reported as part of a group. Dr. Pfeffer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Pfeffer's MIPS scores, performance year 2024

  • 89of 100Final score
  • 87.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Michael Adam Pfeffer has 16 publications on record

Dmand AI links 16 papers to Dr. Pfeffer, published from 2014 to 2025. 2023 was the busiest year, with 3. The most frequent topics are Artificial Intelligence, Electronic Health Records and Academic Medical Centers. Dr. Pfeffer has published most often in JAMA Netw Open. Dr. Pfeffer's most frequent co-authors are Michael Andrew Pfeffer, MBBS, Steven Yu-Ta Lin, MD and Stephen Parnell Ma, MD.

Papers16
Years published2014 to 2025

Dr. Pfeffer's papers by year, 2014 to 2025

Topics Dr. Pfeffer writes about most

  • Artificial Intelligence
  • Electronic Health Records
  • Academic Medical Centers
  • Computer Security
  • Documentation
  • Attitude of Health Personnel
  • Confidentiality
  • Delivery of Health Care

Dr. Pfeffer's most frequent co-authors

Recent publications by Dr. Pfeffer

See all 16 publications and co-authors

See who Dr. Pfeffer researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Pfeffer 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

Dr. Michael Adam Pfeffer received $203 in industry payments from 2023 to 2025

CMS Open Payments shows 2 general payments to Dr. Pfeffer from 2 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $103.

General payments to Dr. Pfeffer by program year, 2023 to 2025

Companies that paid Dr. Pfeffer the most, 2023 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Pfeffer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Michael Adam Pfeffer graduated from Weill Cornell Medicine

Dr. Pfeffer graduated from Weill Cornell Medicine in 2004. Dr. Pfeffer is a member of ACP and AMIA.

  1. Medical schoolWeill Cornell Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in clinical informaticsAmerican Board of Preventive Medicine

Source: Dmand AI Professional Profile Data

Dr. Michael Adam Pfeffer accepts plans from 3 insurance carriers

Dr. Pfeffer is in network with 3 carriers, including Aetna, HCSC and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.

  • Aetna
  • HCSC
  • CMS Medicare

Plan types Dr. Pfeffer accepts, by number of carriers

  1. Medicare3
  2. PPO2
  3. EPO1
  4. HMO1
  5. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Michael Adam Pfeffer'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 services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. Michael Adam Pfeffer

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 Adam Pfeffer's NPI number?

Dr. Michael Adam Pfeffer's NPI number is 1952434607. It was assigned on March 13, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Michael Adam Pfeffer?

Dr. Michael Adam Pfeffer is an internist in Stanford, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Michael Adam Pfeffer practice?

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

What is Dr. Michael Adam Pfeffer's office phone number?

The practice phone on file for Dr. Pfeffer is (650) 723-4000.

What is Dr. Michael Adam Pfeffer's medical license number?

Dr. Pfeffer's California license number on file is A93075, one of the licenses on file in 2 states.

Which states has Dr. Michael Adam Pfeffer been licensed in?

Dmand AI has state licenses on file for Dr. Pfeffer in California (2005 to 2025) and Hawaii (2008 to 2012).

Which hospitals is Dr. Michael Adam Pfeffer affiliated with?

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

What medical group is Dr. Michael Adam Pfeffer part of?

Dr. Pfeffer is linked to Stanford Health Care. Dmand AI links Dr. Pfeffer to 1 more medical group.

Does Dr. Michael Adam Pfeffer accept Medicare?

Yes. CMS data shows Dr. Pfeffer billed Medicare for 28 services in 2024, and Dr. Pfeffer accepts Medicare assignment.

What is Dr. Michael Adam Pfeffer's MIPS score?

Dr. Pfeffer's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Michael Adam Pfeffer see?

CMS counts 22 Medicare patients who saw Dr. Pfeffer in 2024, with an average age of 70.

Is Dr. Michael Adam Pfeffer board certified?

Yes. Dr. Pfeffer is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Michael Adam Pfeffer bill to Medicare?

In 2024, Dr. Pfeffer's most billed Medicare services were hospital inpatient care (99233).

Where did Dr. Michael Adam Pfeffer go to medical school?

Dr. Pfeffer graduated from Weill Cornell Medicine in 2004.

Has Dr. Michael Adam Pfeffer received payments from drug or device companies?

CMS Open Payments shows $203 in general payments to Dr. Pfeffer from 2 companies from 2023 to 2025. The largest total came from Gilead Sciences, Inc.

How long has Dr. Michael Adam Pfeffer been practicing?

Dr. Pfeffer graduated from medical school in 2004, 22 years ago.

Does Dr. Michael Adam Pfeffer do research?

Dmand AI links 16 publications to Dr. Pfeffer, published from 2014 to 2025.

Who does Dr. Michael Adam Pfeffer publish with?

Dr. Pfeffer's most frequent co-authors are Michael Andrew Pfeffer, MBBS (15 shared papers), Steven Yu-Ta Lin, MD (5 shared papers) and Stephen Parnell Ma, MD (4 shared papers).

What insurance does Dr. Michael Adam Pfeffer accept?

Dr. Pfeffer is in network with 3 carriers, including Aetna, HCSC and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.

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