Dr. Nirupam Singh, MD
- Part D claims, 2024
- 1,255
- Hospital affiliations
- 3
- Medical group
- 1
- Insurance carriers
- 4
- State licenses
- 2
- Practice address
- 975 Sereno Dr, Vallejo, CA 94589
- Practice phone
- Call (707) 651-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Nirupam Singh is an internist in Vallejo, California
Dr. Singh practices at Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente.
Dr. Singh's NPI, 1427099753, was assigned on June 9, 2006. Dr. Singh graduated from Delhi University College of Medical Sciences in 1996. Dr. Singh holds California license A79527.
- NPI
- 1427099753NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082801675
- NPI enumeration date
- June 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 651-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nirupam Singh practices at Vallejo Medical Center in Vallejo, California
Dr. Singh's primary practice is Vallejo Medical Center, at 975 Sereno Dr, Vallejo, CA 94589 in Solano County. The practice phone is (707) 651-1000.
- Vallejo Medical Center975 Sereno Dr, Vallejo, CA 94589 · Solano CountyPhone(707) 651-1000
Source: Dmand AI Affiliation Data
Dr. Nirupam Singh is affiliated with 5 sites of care and 1 medical group
Dr. Singh's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dr. Singh is also affiliated with Hoag Hospital Newport Beach. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Singh to 1 more hospital, 1 home health agency and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nirupam Singh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Singh practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vallejo Medical Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nirupam 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 board certified in critical care medicine by the American Board of Internal Medicine. Dmand AI has Dr. Singh's licenses on file in 2 states: California and Oregon.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Oregon license
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. Nirupam Singh's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Singh's median patient age at 60, with 47% 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 60
Patient panel by sex, all payers
- Women47%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Nirupam Singh wrote 1,255 Medicare Part D claims in 2024
In 2024, Dr. Singh wrote 1,255 Medicare Part D claims for 222 patients. 50% of them were for generic drugs. CMS names the drug for 1,120 of them, across 23 drugs with 11 or more claims each, at $673,528 in total drug cost. In 2023, CMS named 976 claims across 22 drugs.
Dr. Singh's Part D claims by kind of drug, 2024
- Generic633 claims50%
- Brand-name622 claims50%
Dr. Singh'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. Singh's Part D claims, 2024
- Antibiotics7%88 of 1,255 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: 9762024: 1,12015%
Drugs named by CMS: 23 in 2024, 22 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. Nirupam Singh takes part in Medicare
Dr. Singh 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. Nirupam Singh graduated from Delhi University College of Medical Sciences
Dr. Singh graduated from Delhi University College of Medical Sciences in 1996.
- Medical school
- Board certified in critical care medicine
- Board certified in pulmonary disease
- Board certified in sleep medicine
Source: Dmand AI Professional Profile Data
Dr. Nirupam Singh accepts plans from 4 insurance carriers
Dr. Singh is in network with 4 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Kaiser Permanente
- Blue Cross Blue Shield of Massachusetts
- HCSC
- CMS Medicare
Plan types Dr. Singh accepts, by number of carriers
- Medicare3
- PPO2
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Nirupam 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 | 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. Nirupam Singh
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. Nirupam Singh's NPI number?
Dr. Nirupam Singh's NPI number is 1427099753. It was assigned on June 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nirupam Singh?
Dr. Nirupam Singh is an internist in Vallejo, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Nirupam Singh practice?
Dr. Singh practices at 975 Sereno Dr, Vallejo, CA 94589. Dr. Singh's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dmand AI also links Dr. Singh to 1 hospital, 1 home health agency and 1 hospice.
What is Dr. Nirupam Singh's office phone number?
The practice phone on file for Dr. Singh is (707) 651-1000.
What is Dr. Nirupam Singh's medical license number?
Dr. Singh holds California license A79527, one of the licenses on file in 2 states.
Which states has Dr. Nirupam Singh been licensed in?
Dmand AI has state licenses on file for Dr. Singh in California (2002 to 2026) and Oregon (since 2011).
Which hospitals is Dr. Nirupam Singh affiliated with?
Dr. Singh practices at Vallejo Medical Center in Vallejo, California. Dr. Singh is also affiliated with Hoag Hospital Newport Beach. Dmand AI links Dr. Singh to 1 more hospital.
What medical group is Dr. Nirupam Singh part of?
Dr. Singh is linked to The Permanente Medical Group, Inc.
Does Dr. Nirupam Singh accept Medicare?
Yes. CMS lists Dr. Singh as accepting Medicare assignment.
Is Dr. Nirupam Singh board certified?
Yes. Dr. Singh is board certified in critical care medicine by the American Board of Internal Medicine.
Show 4 more questionsShow fewer questions
Where did Dr. Nirupam Singh go to medical school?
Dr. Singh graduated from Delhi University College of Medical Sciences in 1996.
What drugs does Dr. Nirupam Singh prescribe most?
In 2024 Medicare Part D data, Dr. Singh's most prescribed drugs by claims were Spiriva Respimat, Albuterol Sulfate Hfa and Breyna.
How long has Dr. Nirupam Singh been practicing?
Dr. Singh graduated from medical school in 1996, 30 years ago.
What insurance does Dr. Nirupam Singh accept?
Dr. Singh is in network with 4 carriers, including Kaiser Permanente, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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