Chromosomes, Human, 6-12 and XLeukemia, Myeloid, AcutePasteurella Infections
Dr. Peter Hamilton Stein, MD
NPI1730295643PAC ID7315835691
- Medicare services, 2024
- 1,003
- Medicare patients, 2024
- 362
- Part D claims, 2024
- 2,510
- Publications
- 1
- MIPS score, 2024
- 81
- Practice address
- 2 Bon Air Rd, Larkspur, CA 94939
- Practice phone
- Call (415) 464-2090
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Marin Healthcare District
Larkspur, California
Find Dr. Stein's professional email, personal email and mobile number
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Dr. Peter Hamilton Stein is a rheumatologist in Larkspur, California
Dr. Stein practices at Marin Healthcare District in Larkspur, California.
Dr. Stein's NPI, 1730295643, was assigned on August 22, 2006. Dr. Stein graduated from The Johns Hopkins University School of Medicine in 1986. Dr. Stein holds California license A48620.
NPI and contact details
- NPI
- 1730295643NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315835691
- NPI enumeration date
- August 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (415) 464-2090
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter Hamilton Stein practices at Marin Healthcare District in Larkspur, California
Dr. Stein's primary practice is Marin Healthcare District, at 2 Bon Air Rd, Larkspur, CA 94939 in Marin County. The practice phone is (415) 464-2090.
- Marin Healthcare District2 Bon Air Rd, Larkspur, CA 94939 · Marin CountyPhone(415) 464-2090
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Peter Hamilton Stein is affiliated with 5 sites of care and 2 medical groups
Dr. Stein's primary practice is Marin Healthcare District in Larkspur, California. Dr. Stein is also affiliated with MarinHealth Medical Center. The medical group on file is UCSF Medical Group. Dmand AI also links Dr. Stein to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Marin Healthcare DistrictPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Peter Hamilton Stein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stein practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marin Healthcare District | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter Hamilton Stein is one of 821 rheumatologists in California
Rheumatology is Dr. Stein's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. 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 New York.
Specialties and state licenses
- Rheumatology, CaliforniaPrimary
- New York license
Clinical focus
Dmand AI lists arteritis, arthritis, gout, joint arthropathy, joint pain, lupus, muscle pain, fibromyalgia, and limb pain and osteoporosis among the conditions Dr. Stein treats.
Rheumatologists near Dr. Stein
Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.
821rheumatologists in California
2rheumatologists in Larkspur
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Peter Hamilton Stein billed Medicare for 1,003 services in 2024
CMS data shows 1,003 Medicare services from Dr. Stein across 6 procedure codes in 2024, for 362 Medicare patients. Medicare paid $80,005 for them. Every service was in an office.
Medicare services, 20241,003
Medicare patients362
Paid by Medicare$80,005
Procedure codes6
Dr. Stein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0772024: 86919%
- Drugs given in the office
- 2023: 1902024: 13429%
- Surgery
- 2023: 132024: 0100%
Dr. Stein compared with the California median for rheumatologists, 2024
- Dr. Stein
- California median
- Medicare services
- 1,003vs 90011% above
- Medicare patients
- 362vs 21668% above
- Part D claims
- 2,286vs 9622.4 times
Medians across 773 rheumatologists in California with Dmand AI profiles that report each measure.
Dr. Stein'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.
Need commercial claims for Dr. Stein?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stein and other rheumatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter Hamilton Stein treated 362 Medicare patients in 2024, average age 75
CMS counts 362 Medicare patients who saw Dr. Stein in 2024. The largest group is 75 to 84, with 152 patients. 75% of them have arthritis, and 74% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.22, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Stein's median patient age at 73, with 74% women.
Medicare patients, 2024362
Average age75
Average risk score1.22
Also on Medicaid14%
Dr. Stein's Medicare patients by age, 2024
Dr. Stein's Medicare patients by sex, 2024
- Women24969%
- Men11331%
Chronic conditions among Dr. Stein's Medicare patients, 2024
- Arthritis75%
- High cholesterol74%
- High blood pressure66%
- Osteoporosis24%
- Ischemic heart disease23%
- Anxiety22%
- Mood disorders20%
- Cancer19%
Share of Medicare patients with each condition. A patient can have several.
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 73
Patient panel by sex, all payers
- Women74%
- Men24%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter Hamilton Stein wrote 2,510 Medicare Part D claims in 2024
In 2024, Dr. Stein wrote 2,510 Medicare Part D claims for 358 patients. 89% of them were for generic drugs. CMS names the drug for 2,286 of them, across 43 drugs with 11 or more claims each, at $842,813 in total drug cost. In 2023, CMS named 2,704 claims across 42 drugs.
Part D claims, 20242,510
Drugs named by CMS43
Total drug cost$842,813
Part D patients358
Dr. Stein's Part D claims by kind of drug, 2024
- Generic2,242 claims89%
- Brand-name and other268 claims11%
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
- Opioids7%187 of 2,510 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: 2,7042024: 2,28615%
Drugs named by CMS: 43 in 2024, 42 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
Dr. Peter Hamilton Stein scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Stein for performance year 2024. Dr. Stein accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Stein as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Stein's MIPS scores, performance year 2024
- 81of 100Final score
- 80.9of 100Quality
- 76of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 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. Peter Hamilton Stein has 1 publication on record
Dmand AI links 1 paper to Dr. Stein.
Papers1
Recent publications by Dr. Stein
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 rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Peter Hamilton Stein received $5,647 in industry payments from 2016 to 2025
CMS Open Payments shows 219 general payments to Dr. Stein from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Amgen Inc. paid the most, $2,793.
General payments to Dr. Stein by program year, 2016 to 2025
General payments to Dr. Stein by kind, 2016 to 2025
$5.6Kin total
- Food and beverage$5,53298%
- Education$1162%
Companies that paid Dr. Stein the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter Hamilton Stein has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Stein.
Awards and honors for Dr. Stein
- Undated
- ACR Fellow
- Checkbook Top Doc
Source: Dmand AI Professional Profile Data
Dr. Peter Hamilton Stein graduated from The Johns Hopkins University School of Medicine
Dr. Stein graduated from The Johns Hopkins University School of Medicine in 1986. Dr. Stein is a member of ACR.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Dr. Peter Hamilton Stein accepts plans from 10 insurance carriers
Dr. Stein is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- +2 more carriersWith a free account
Plan types Dr. Stein accepts, by number of carriers
- Medicare7
- PPO7
- HMO5
- EPO3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Peter Hamilton 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 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 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)Clinician Public Reporting: Overall MIPS Performance (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. Peter Hamilton 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. Peter Hamilton Stein's NPI number?
Dr. Peter Hamilton Stein's NPI number is 1730295643. It was assigned on August 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Hamilton Stein?
Dr. Peter Hamilton Stein is a rheumatologist in Larkspur, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Peter Hamilton Stein practice?
Dr. Stein practices at 2 Bon Air Rd, Larkspur, CA 94939. Dr. Stein's primary practice is Marin Healthcare District in Larkspur, California. Dmand AI also links Dr. Stein to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Peter Hamilton Stein's office phone number?
The practice phone on file for Dr. Stein is (415) 464-2090.
What is Dr. Peter Hamilton Stein's medical license number?
Dr. Stein holds California license A48620, one of the licenses on file in 2 states.
Which states has Dr. Peter Hamilton Stein been licensed in?
Dmand AI has state licenses on file for Dr. Stein in California (1990 to 2026) and New York (since 1988).
Which hospitals is Dr. Peter Hamilton Stein affiliated with?
Dr. Stein is affiliated with MarinHealth Medical Center. Dmand AI links Dr. Stein to 1 more hospital.
What medical group is Dr. Peter Hamilton Stein part of?
Dr. Stein is linked to UCSF Medical Group. Dmand AI links Dr. Stein to 1 more medical group.
Does Dr. Peter Hamilton Stein accept Medicare?
Yes. CMS data shows Dr. Stein billed Medicare for 1,003 services in 2024, and Dr. Stein accepts Medicare assignment.
Does Dr. Peter Hamilton Stein offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Stein as offering telehealth services.
Show 10 more questionsShow fewer questions
What is Dr. Peter Hamilton Stein's MIPS score?
Dr. Stein's MIPS final score for performance year 2024 is 81 out of 100.
How many Medicare patients does Dr. Peter Hamilton Stein see?
CMS counts 362 Medicare patients who saw Dr. Stein in 2024, with an average age of 75.
Is Dr. Peter Hamilton Stein board certified?
Yes. Dr. Stein is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Peter Hamilton Stein bill to Medicare?
In 2024, Dr. Stein's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and injected or infused drug (J3301).
Where did Dr. Peter Hamilton Stein go to medical school?
Dr. Stein graduated from The Johns Hopkins University School of Medicine in 1986.
What drugs does Dr. Peter Hamilton Stein prescribe most?
In 2024 Medicare Part D data, Dr. Stein's most prescribed drugs by claims were Prednisone, Hydroxychloroquine Sulfate and Celecoxib.
Has Dr. Peter Hamilton Stein received payments from drug or device companies?
CMS Open Payments shows $5,647 in general payments to Dr. Stein from 17 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Peter Hamilton Stein been practicing?
Dr. Stein graduated from medical school in 1986, 40 years ago.
Does Dr. Peter Hamilton Stein do research?
Dmand AI links 1 publication to Dr. Stein.
What insurance does Dr. Peter Hamilton Stein accept?
Dr. Stein is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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