Dr. Inderjit Singh, MD
- Part D claims, 2024
- 23
- Industry payments
- $8,596
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 3102 E Highland Ave, Patton, CA 92369-7813
- Practice phone
- Call (916) 651-8811
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Department Of State Hospitals - Patton
Hospital · Patton, California
Find Dr. Singh'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. Inderjit Singh is an internist in Fountain Valley, California
Dr. Singh practices at Department Of State Hospitals - Patton in Patton, California.
Dr. Singh's NPI, 1417025388, was assigned on December 1, 2006. Dr. Singh holds California license A63326.
- NPI
- 1417025388NPI Registry (opens in a new tab)
- NPI enumeration date
- December 1, 2006
- NPI status
- Active
- Practice phone
- (916) 651-8811
- 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 Doctors and Clinicians National Downloadable File (CMS)
Dr. Inderjit Singh practices in Patton and Fountain Valley
Dr. Singh's primary practice is Department of State Hospitals - Patton, at 3102 E Highland Ave, Patton, CA 92369-7813. The practice phone is (916) 651-8811. The NPI Registry lists Dr. Singh's practice address as 17100 Euclid St, Fountain Valley, CA 92708.
- Department of State Hospitals - PattonPrimary3102 E Highland Ave, Patton, CA 92369-7813Phone(916) 651-8811
- NPI Registry address17100 Euclid St, Fountain Valley, CA 92708 · Orange CountyPhone(909) 425-7000
Sources: NPPES NPI Registry (CMS); Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Inderjit Singh is affiliated with 1 site of care and 2 medical groups
Dr. Singh's primary practice is Department Of State Hospitals - Patton in Patton, California. The medical group on file is Core Physicians Medical Group. Dmand AI also links Dr. Singh to 1 more medical group, named with a free account.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Inderjit Singh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Singh practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Department Of State Hospitals - Patton | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Inderjit Singh is one of 16,751 internists in California
Internal medicine is Dr. Singh's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Singh is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Singh
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. Inderjit Singh's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. Singh's median patient age at 59, with 88% women.
Dr. Singh'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
- Women88%
- Men13%
Source: Dmand AI Patient Panel Data
Dr. Inderjit Singh wrote 23 Medicare Part D claims in 2024
In 2024, Dr. Singh wrote 23 Medicare Part D claims. 87% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $105 in total drug cost.
Dr. Singh's Part D claims by kind of drug, 2024
- Generic20 claims87%
- Brand-name and other3 claims13%
Dr. Singh's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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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Dr. Inderjit Singh received $8,596 in industry payments from 2018 to 2023
CMS Open Payments shows 7 general payments to Dr. Singh from 5 drug and device companies from 2018 to 2023. Consulting fees make up the largest share, 98% of the total. Acist Medical Systems, Inc. paid the most, $8,427.
General payments to Dr. Singh by program year, 2018 to 2023
General payments to Dr. Singh by kind, 2018 to 2023
- Consulting fees$8,42798%
- Food and beverage$1692%
Companies that paid Dr. Singh the most, 2018 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Inderjit Singh'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)Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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) |
| 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. Inderjit Singh
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What is Dr. Inderjit Singh's NPI number?
Dr. Inderjit Singh's NPI number is 1417025388. It was assigned on December 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Inderjit Singh?
Dr. Inderjit Singh is an internist in Fountain Valley, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Inderjit Singh practice?
Dr. Singh practices at 3102 E Highland Ave, Patton, CA 92369-7813. Dr. Singh also practices at 17100 Euclid St, Fountain Valley, CA 92708. Dr. Singh's primary practice is Department Of State Hospitals - Patton in Patton, California. Dmand AI also links Dr. Singh to 1 medical group.
What is Dr. Inderjit Singh's office phone number?
The practice phone on file for Dr. Singh is (916) 651-8811.
What is Dr. Inderjit Singh's medical license number?
Dr. Singh holds California license A63326.
What medical group is Dr. Inderjit Singh part of?
Dr. Singh is linked to Core Physicians Medical Group. Dmand AI links Dr. Singh to 1 more medical group.
What drugs does Dr. Inderjit Singh prescribe most?
In 2019 Medicare Part D data, Dr. Singh's most prescribed drugs by claims were Losartan Potassium.
Has Dr. Inderjit Singh received payments from drug or device companies?
CMS Open Payments shows $8,596 in general payments to Dr. Singh from 5 companies from 2018 to 2023. The largest total came from Acist Medical Systems, Inc.
How long has Dr. Inderjit Singh been practicing?
Dr. Singh's NPI was assigned in 2006.
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