Collin Samji
- Part D claims, 2024
- 4,340
- Industry payments
- $348
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Practice address
- 43322 Gingham Avenue, Suite 104 & 105, Lancaster, CA 93535
- Practice phone
- Call (661) 874-4050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bartz-Altadonna Community Health Center - Lancaster
FQHC - Main Site · Lancaster, California
Find Collin Samji'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.
Collin Samji is an internist in Lancaster, California
Collin Samji practices at Bartz-Altadonna Community Health Center - Lancaster in Lancaster, California.
Collin Samji's NPI, 1609568989, was assigned on May 24, 2023. Collin Samji holds New York license 60-P121463-01.
- NPI
- 1609568989NPI Registry (opens in a new tab)
- NPI enumeration date
- May 24, 2023
- NPI status
- Active
- Practice phone
- (661) 874-4050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Collin Samji practices at Bartz-Altadonna Community Health Center - Lancaster in Lancaster, California
Collin Samji's primary practice is Bartz-Altadonna Community Health Center - Lancaster, at 43322 Gingham Avenue, Suite 104 & 105, Lancaster, CA 93535 in Los Angeles County. The practice phone is (661) 874-4050.
- Bartz-Altadonna Community Health Center - Lancaster43322 Gingham Avenue, Suite 104 & 105, Lancaster, CA 93535 · Los Angeles CountyPhone(661) 874-4050
Source: Dmand AI Affiliation Data
Collin Samji is affiliated with 2 sites of care and 1 medical group
Collin Samji's primary practice is Bartz-Altadonna Community Health Center - Lancaster in Lancaster, California. The medical group on file is Bartz-Altadonna Community Health Center. Dmand AI also links Collin Samji to 1 more community health center, named with a free account. Collin Samji's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Collin Samji's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Collin Samji practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bartz-Altadonna Community Health Center - Lancaster | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Collin Samji is one of 16,751 internists in California
Internal medicine is Collin Samji's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Collin Samji is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Collin Samji
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
Collin Samji's patients have a median age of 49
Across all payers, Dmand AI patient panel data puts Collin Samji's median patient age at 49, with 56% women.
Collin Samji's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women56%
- Men43%
Source: Dmand AI Patient Panel Data
Collin Samji wrote 4,340 Medicare Part D claims in 2024
In 2024, Collin Samji wrote 4,340 Medicare Part D claims for 227 patients. 80% of them were for generic drugs. CMS names the drug for 3,746 of them, across 79 drugs with 11 or more claims each, at $394,170 in total drug cost. In 2023, CMS named 2,104 claims across 55 drugs.
Collin Samji's Part D claims by kind of drug, 2024
- Generic3,458 claims80%
- Brand-name723 claims17%
- Other159 claims4%
Collin Samji'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 Collin Samji's Part D claims, 2024
- Antibiotics1%38 of 4,340 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: 2,1042024: 3,74678%
Drugs named by CMS: 79 in 2024, 55 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
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Collin Samji received $348 in industry payments from 2024 to 2025
CMS Open Payments shows 3 general payments to Collin Samji from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Phathom Pharmaceuticals, Inc. paid the most, $126.
General payments to Collin Samji by program year, 2024 to 2025
Companies that paid Collin Samji the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Collin Samji'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 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) |
| 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 Collin Samji
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Collin Samji's NPI number?
Collin Samji's NPI number is 1609568989. It was assigned on May 24, 2023, and it is active in the NPI Registry.
What does Collin Samji specialize in?
Collin Samji is an internist in Lancaster, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Collin Samji practice?
Collin Samji practices at 43322 Gingham Avenue, Suite 104 & 105, Lancaster, CA 93535. Collin Samji's primary practice is Bartz-Altadonna Community Health Center - Lancaster in Lancaster, California. Dmand AI also links Collin Samji to 1 community health center.
What is Collin Samji's office phone number?
The practice phone on file for Collin Samji is (661) 874-4050.
What is Collin Samji's medical license number?
Collin Samji holds New York license 60-P121463-01.
What medical group is Collin Samji part of?
Collin Samji is linked to Bartz-Altadonna Community Health Center.
What drugs does Collin Samji prescribe most?
In 2024 Medicare Part D data, Collin Samji's most prescribed drugs by claims were Atorvastatin Calcium, Metformin HCl and Albuterol Sulfate Hfa.
Has Collin Samji received payments from drug or device companies?
CMS Open Payments shows $348 in general payments to Collin Samji from 3 companies from 2024 to 2025. The largest total came from Phathom Pharmaceuticals, Inc.
How long has Collin Samji been practicing?
Collin Samji's NPI was assigned in 2023.
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