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Dr. Harjoat Singh, DO
NPI1518536168PAC ID2567903347
- Medicare services, 2024
- 113
- Medicare patients, 2024
- 93
- Part D claims, 2024
- 57
- Publications
- 1
- Hospital affiliations
- 4
- 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. Harjoat 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, 1518536168, was assigned on June 18, 2021. Dr. Singh graduated from Lake Erie College of Osteopathic Medicine, Erie in 2021. Dr. Singh holds Ohio license 58.032499.
NPI and contact details
- NPI
- 1518536168NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567903347
- NPI enumeration date
- June 18, 2021
- 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
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Harjoat 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. Harjoat Singh is affiliated with 7 sites of care and 2 medical groups
Dr. Singh's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dr. Singh is also affiliated with Tampa General Hospital. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Singh to 2 more hospitals, 1 group practice or clinic, 1 home health agency, 1 hospice and 1 medical group, each named with a free account.
Tampa General HospitalThe Permanente Medical Group, Inc.2 hospitalsNames with a free account1 group practice or clinicName with a free account1 home health agencyName with a free account1 hospiceName with a free account1 medical groupName with a free account
See all 9 affiliations for Dr. SinghSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Harjoat Singh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Singh practices, 7 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 |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Harjoat 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 Ohio.
Specialties and state licenses
- Internal medicine, OhioPrimary
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. Harjoat Singh billed Medicare for 113 services in 2024
CMS data shows 113 Medicare services from Dr. Singh across 4 procedure codes in 2024, for 93 Medicare patients. Medicare paid $10,808 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024113
Medicare patients93
Paid by Medicare$10,808
Procedure codes4
Dr. Singh compared with the California median for internists, 2024
- Dr. Singh
- California median
- Medicare services
- 113vs 36169% below
- Medicare patients
- 93vs 15138% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Singh'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. Singh?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Singh and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Harjoat Singh treated 93 Medicare patients in 2024, average age 74
CMS counts 93 Medicare patients who saw Dr. Singh in 2024. The largest group is 65 to 74, with 38 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 19% are also on Medicaid. Their average risk score is 2.42, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Singh's median patient age at 68, with 43% women.
Medicare patients, 202493
Average age74
Average risk score2.42
Also on Medicaid19%
Dr. Singh's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Singh's Medicare patients by sex, 2024
- Women5559%
- Men3841%
Chronic conditions among Dr. Singh's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Mood disorders53%
- Chronic kidney disease49%
- Anxiety47%
- Depression45%
- Ischemic heart disease45%
Share of Medicare patients with each condition. A patient can have several.
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 68
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Harjoat Singh wrote 57 Medicare Part D claims in 2024
In 2024, Dr. Singh wrote 57 Medicare Part D claims for 35 patients. 93% of them were for generic drugs.
Part D claims, 202457
Part D patients35
Dr. Singh's Part D claims by kind of drug, 2024
- Generic53 claims93%
- Brand-name and other4 claims7%
Drug classes CMS tracks in Dr. Singh's Part D claims, 2024
- Antibiotics32%18 of 57 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Harjoat 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. Harjoat Singh has 1 publication on record
Dmand AI links 1 paper to Dr. Singh in 2012. Dr. Singh's most frequent co-authors are Caitlin Whitney Hicks, MD, MS and Ellen S. Rome, MD, MPH.
Papers1
Dr. Singh's most frequent co-authors
Recent publications by Dr. Singh
See who Dr. Singh researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Singh works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Harjoat Singh received $69 in industry payments from 2021 to 2024
CMS Open Payments shows 4 general payments to Dr. Singh from 3 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $32.
General payments to Dr. Singh by program year, 2021 to 2024
Companies that paid Dr. Singh the most, 2021 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Harjoat Singh graduated from Lake Erie College of Osteopathic Medicine, Erie
Dr. Singh graduated from Lake Erie College of Osteopathic Medicine, Erie in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Harjoat 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 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 (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) |
| 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Harjoat 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. Harjoat Singh's NPI number?
Dr. Harjoat Singh's NPI number is 1518536168. It was assigned on June 18, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Harjoat Singh?
Dr. Harjoat Singh is an internist in Vallejo, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Harjoat 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 2 hospitals, 1 group practice or clinic, 1 home health agency, 1 hospice and 1 medical group.
What is Dr. Harjoat Singh's office phone number?
The practice phone on file for Dr. Singh is (707) 651-1000.
What is Dr. Harjoat Singh's medical license number?
Dr. Singh holds Ohio license 58.032499.
Which hospitals is Dr. Harjoat Singh affiliated with?
Dr. Singh practices at Vallejo Medical Center in Vallejo, California. Dr. Singh is also affiliated with Tampa General Hospital. Dmand AI links Dr. Singh to 2 more hospitals.
What medical group is Dr. Harjoat Singh part of?
Dr. Singh is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Singh to 1 more medical group.
Does Dr. Harjoat Singh accept Medicare?
Yes. CMS data shows Dr. Singh billed Medicare for 113 services in 2024, and Dr. Singh accepts Medicare assignment.
How many Medicare patients does Dr. Harjoat Singh see?
CMS counts 93 Medicare patients who saw Dr. Singh in 2024, with an average age of 74.
What services does Dr. Harjoat Singh bill to Medicare?
In 2024, Dr. Singh's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99222) and hospital inpatient care (99232).
Show 5 more questionsShow fewer questions
Where did Dr. Harjoat Singh go to medical school?
Dr. Singh graduated from Lake Erie College of Osteopathic Medicine, Erie in 2021.
Has Dr. Harjoat Singh received payments from drug or device companies?
CMS Open Payments shows $69 in general payments to Dr. Singh from 3 companies from 2021 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Harjoat Singh been practicing?
Dr. Singh graduated from medical school in 2021, 5 years ago.
Does Dr. Harjoat Singh do research?
Dmand AI links 1 publication to Dr. Singh.
Who does Dr. Harjoat Singh publish with?
Dr. Singh's most frequent co-authors are Caitlin Whitney Hicks, MD, MS (1 shared paper) and Ellen S. Rome, MD, MPH (1 shared paper).
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