Dr. John I. Sam, MD
- Medicare services, 2024
- 185
- Medicare patients, 2024
- 94
- Part D claims, 2024
- 6,607
- Industry payments
- $1,851
- Affiliated sites
- 1
- Practice address
- 8403 N Fallbrook Ave, West Hills, CA 91304
- Practice phone
- Call (740) 289-3508
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Quest Diagnostics
West Hills, California
Find Dr. Sam'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 I. Sam is an internist in West Hills, California
Dr. Sam practices at Quest Diagnostics in West Hills, California.
Dr. Sam's NPI, 1033278031, was assigned on December 6, 2006. Dr. Sam holds California license A44946.
- NPI
- 1033278031NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345427449
- NPI enumeration date
- December 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (740) 289-3508
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John I. Sam practices at Quest Diagnostics in West Hills, California
Dr. Sam's primary practice is Quest Diagnostics, at 8403 N Fallbrook Ave, West Hills, CA 91304 in Los Angeles County. The practice phone is (740) 289-3508.
- Quest Diagnostics8403 N Fallbrook Ave, West Hills, CA 91304 · Los Angeles CountyPhone(740) 289-3508
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John I. Sam is affiliated with 2 sites of care and 2 medical groups
Dr. Sam's primary practice is Quest Diagnostics in West Hills, California. The medical group on file is Golden State Family Clinic. Dmand AI also links Dr. Sam to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John I. Sam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sam practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Quest Diagnostics | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John I. Sam is one of 16,751 internists in California
Internal medicine is Dr. Sam's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sam is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Sam
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. John I. Sam billed Medicare for 185 services in 2024
CMS data shows 185 Medicare services from Dr. Sam across 3 procedure codes in 2024, all of them office visits, for 94 Medicare patients. Medicare paid $18,798 for them. Every service was in an office.
Dr. Sam's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3192024: 18542%
- Tests and treatments
- 2023: 142024: 0100%
- Other services
- 2023: 182024: 0100%
Dr. Sam compared with the California median for internists, 2024
- Dr. Sam
- California median
- Medicare services
- 185vs 36149% below
- Medicare patients
- 94vs 15138% below
- Part D claims
- 6,185vs 42114.7 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Sam'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. Sam and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John I. Sam treated 94 Medicare patients in 2024, average age 73
CMS counts 94 Medicare patients who saw Dr. Sam in 2024. The largest group is 65 to 74, with 41 patients. 75% of them have diabetes, and 75% have high blood pressure. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sam's median patient age at 70, with 60% women.
Dr. Sam's Medicare patients by age, 2024
Dr. Sam's Medicare patients by sex, 2024
- Women6367%
- Men3133%
Chronic conditions among Dr. Sam's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Ischemic heart disease32%
- Mood disorders20%
- Depression19%
- Chronic kidney disease18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John I. Sam wrote 6,607 Medicare Part D claims in 2024
In 2024, Dr. Sam wrote 6,607 Medicare Part D claims for 320 patients. 87% of them were for generic drugs. CMS names the drug for 6,185 of them, across 74 drugs with 11 or more claims each, at $768,844 in total drug cost. In 2023, CMS named 5,659 claims across 78 drugs.
Dr. Sam's Part D claims by kind of drug, 2024
- Generic5,722 claims87%
- Brand-name841 claims13%
- Other44 claims1%
Dr. Sam'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. Sam's Part D claims, 2024
- Opioids0%30 of 6,607 claims
- Antibiotics2%141 of 6,607 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: 5,6592024: 6,1859%
Drugs named by CMS: 74 in 2024, 78 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. John I. Sam takes part in Medicare
Dr. Sam 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 I. Sam received $1,851 in industry payments from 2016 to 2025
CMS Open Payments shows 63 general payments to Dr. Sam from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Novo Nordisk Inc paid the most, $364.
General payments to Dr. Sam by program year, 2016 to 2025
General payments to Dr. Sam by kind, 2016 to 2025
- Food and beverage$1,83599%
- Education$161%
Companies that paid Dr. Sam the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John I. Sam'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 I. Sam
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 I. Sam's NPI number?
Dr. John I. Sam's NPI number is 1033278031. It was assigned on December 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John I. Sam?
Dr. John I. Sam is an internist in West Hills, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John I. Sam practice?
Dr. Sam practices at 8403 N Fallbrook Ave, West Hills, CA 91304. Dr. Sam's primary practice is Quest Diagnostics in West Hills, California. Dmand AI also links Dr. Sam to 1 group practice or clinic and 1 medical group.
What is Dr. John I. Sam's office phone number?
The practice phone on file for Dr. Sam is (740) 289-3508.
What is Dr. John I. Sam's medical license number?
Dr. Sam holds California license A44946.
What medical group is Dr. John I. Sam part of?
Dr. Sam is linked to Golden State Family Clinic. Dmand AI links Dr. Sam to 1 more medical group.
Does Dr. John I. Sam accept Medicare?
Yes. CMS data shows Dr. Sam billed Medicare for 185 services in 2024, and Dr. Sam accepts Medicare assignment.
How many Medicare patients does Dr. John I. Sam see?
CMS counts 94 Medicare patients who saw Dr. Sam in 2024, with an average age of 73.
What services does Dr. John I. Sam bill to Medicare?
In 2024, Dr. Sam's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).
What drugs does Dr. John I. Sam prescribe most?
In 2024 Medicare Part D data, Dr. Sam's most prescribed drugs by claims were Clopidogrel, Atorvastatin Calcium and Amlodipine Besylate.
Has Dr. John I. Sam received payments from drug or device companies?
CMS Open Payments shows $1,851 in general payments to Dr. Sam from 18 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. John I. Sam been practicing?
Dr. Sam graduated from medical school in 1975, 51 years ago.
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