Am J Trop Med Hyg
ChinaCysticercosisDiseases in Twins
Dr. Usha Rajapuram Kumar, MD
NPI1811263833PAC ID4486942414
- Medicare services, 2019
- 16
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 2,016
- Publications
- 1
- Hospital affiliations
- 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. Kumar'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. Usha Rajapuram Kumar is an internist in Vallejo, California
Dr. Kumar practices at Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente.
Dr. Kumar's NPI, 1811263833, was assigned on March 23, 2012. Dr. Kumar graduated from Drexel University College of Medicine/Hahnemann University in 2012. Dr. Kumar's Pennsylvania license number on file is MT201466.
NPI and contact details
- NPI
- 1811263833NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486942414
- NPI enumeration date
- March 23, 2012
- 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
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Usha Rajapuram Kumar practices at Vallejo Medical Center in Vallejo, California
Dr. Kumar'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. Usha Rajapuram Kumar is affiliated with 5 sites of care and 1 medical group
Dr. Kumar's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dr. Kumar is also affiliated with Vacaville Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Kumar to 1 more group practice or clinic, 1 home health agency and 1 hospice, each named with a free account.
Vacaville Medical CenterThe Permanente Medical Group, Inc.1 group practice or clinicName with a free account1 home health agencyName with a free account1 hospiceName with a free account
See all 6 affiliations for Dr. KumarSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Usha Rajapuram Kumar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kumar 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. Usha Rajapuram Kumar is one of 16,751 internists in California
Internal medicine is Dr. Kumar's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Kumar is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Kumar's licenses on file in 2 states: Pennsylvania and California.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
- California license
Clinical focus
Dmand AI lists cataract surgery with lens implant and glaucoma surgery among the conditions Dr. Kumar treats.
Internists near Dr. Kumar
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. Usha Rajapuram Kumar billed Medicare for 16 services in 2019
CMS data shows 16 Medicare services from Dr. Kumar across 1 procedure code in 2019, for 12 Medicare patients. Medicare paid $827 for them. Every service was in an office.
Medicare services, 201916
Medicare patients12
Paid by Medicare$827
Procedure codes1
Dr. Kumar's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Tests and treatments
- 2018: 192019: 1616%
Dr. Kumar compared with the California median for internists, 2019
- Dr. Kumar
- California median
- Medicare services
- 16vs 36196% below
- Medicare patients
- 12vs 15192% below
- Part D claims
- 1,900vs 4214.5 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Kumar's most billed Medicare procedure codes, 2019
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. Kumar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kumar and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Usha Rajapuram Kumar treated 12 Medicare patients in 2024, average age 62
CMS counts 12 Medicare patients who saw Dr. Kumar in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kumar's median patient age at 65, with 59% women.
Medicare patients, 202412
Average age62
Average risk score1.33
Dr. Kumar's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Kumar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Usha Rajapuram Kumar wrote 2,016 Medicare Part D claims in 2024
In 2024, Dr. Kumar wrote 2,016 Medicare Part D claims for 549 patients. 82% of them were for generic drugs. CMS names the drug for 1,900 of them, across 13 drugs with 11 or more claims each, at $55,606 in total drug cost. In 2023, CMS named 1,445 claims across 14 drugs.
Part D claims, 20242,016
Drugs named by CMS13
Total drug cost$55,606
Part D patients549
Dr. Kumar's Part D claims by kind of drug, 2024
- Generic1,659 claims82%
- Brand-name357 claims18%
Dr. Kumar'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,4452024: 1,90031%
Drugs named by CMS: 13 in 2024, 14 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. Usha Rajapuram Kumar takes part in Medicare
Dr. Kumar 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. Usha Rajapuram Kumar has 1 publication on record
Dmand AI links 1 paper to Dr. Kumar in 2015. Dr. Kumar's most frequent co-authors are Don O. Kikkawa, MD, Bobby S. Korn, MD and Jonathan Howard Lin, MD.
Papers1
Dr. Kumar's most frequent co-authors
- Don O. Kikkawa, MD1 shared paper
- Bobby S. Korn, MD1 shared paper
- Jonathan Howard Lin, MD1 shared paper
Recent publications by Dr. Kumar
See who Dr. Kumar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kumar 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. Usha Rajapuram Kumar received $766 in industry payments from 2016 to 2025
CMS Open Payments shows 14 general payments to Dr. Kumar from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $448.
General payments to Dr. Kumar by program year, 2016 to 2025
Companies that paid Dr. Kumar the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Usha Rajapuram Kumar graduated from Drexel University College of Medicine/Hahnemann University
Dr. Kumar graduated from Drexel University College of Medicine/Hahnemann University in 2012.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Usha Rajapuram Kumar accepts plans from 2 insurance carriers
Dr. Kumar is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Kumar accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Usha Rajapuram Kumar'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 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) |
| 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 |
| 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. Usha Rajapuram Kumar
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. Usha Rajapuram Kumar's NPI number?
Dr. Usha Rajapuram Kumar's NPI number is 1811263833. It was assigned on March 23, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Usha Rajapuram Kumar?
Dr. Usha Rajapuram Kumar is an internist in Vallejo, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Usha Rajapuram Kumar practice?
Dr. Kumar practices at 975 Sereno Dr, Vallejo, CA 94589. Dr. Kumar's primary practice is Vallejo Medical Center in Vallejo, California, part of Kaiser Permanente. Dmand AI also links Dr. Kumar to 1 group practice or clinic, 1 home health agency and 1 hospice.
What is Dr. Usha Rajapuram Kumar's office phone number?
The practice phone on file for Dr. Kumar is (707) 651-1000.
What is Dr. Usha Rajapuram Kumar's medical license number?
Dr. Kumar's Pennsylvania license number on file is MT201466, one of the licenses on file in 2 states.
Which states has Dr. Usha Rajapuram Kumar been licensed in?
Dmand AI has state licenses on file for Dr. Kumar in Pennsylvania (2012 to 2013) and California (2014 to 2025).
Which hospitals is Dr. Usha Rajapuram Kumar affiliated with?
Dr. Kumar practices at Vallejo Medical Center in Vallejo, California. Dr. Kumar is also affiliated with Vacaville Medical Center.
What medical group is Dr. Usha Rajapuram Kumar part of?
Dr. Kumar is linked to The Permanente Medical Group, Inc.
Does Dr. Usha Rajapuram Kumar accept Medicare?
Yes. CMS data shows Dr. Kumar billed Medicare for 16 services in 2019, and Dr. Kumar accepts Medicare assignment.
How many Medicare patients does Dr. Usha Rajapuram Kumar see?
CMS counts 12 Medicare patients who saw Dr. Kumar in 2024, with an average age of 62.
Show 9 more questionsShow fewer questions
Is Dr. Usha Rajapuram Kumar board certified?
Yes. Dr. Kumar is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Usha Rajapuram Kumar bill to Medicare?
In 2019, Dr. Kumar's most billed Medicare services were eye exam or test (92012).
Where did Dr. Usha Rajapuram Kumar go to medical school?
Dr. Kumar graduated from Drexel University College of Medicine/Hahnemann University in 2012.
What drugs does Dr. Usha Rajapuram Kumar prescribe most?
In 2024 Medicare Part D data, Dr. Kumar's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Prednisolone Acetate.
Has Dr. Usha Rajapuram Kumar received payments from drug or device companies?
CMS Open Payments shows $766 in general payments to Dr. Kumar from 5 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Usha Rajapuram Kumar been practicing?
Dr. Kumar graduated from medical school in 2012, 14 years ago.
Does Dr. Usha Rajapuram Kumar do research?
Dmand AI links 1 publication to Dr. Kumar.
Who does Dr. Usha Rajapuram Kumar publish with?
Dr. Kumar's most frequent co-authors are Don O. Kikkawa, MD (1 shared paper), Bobby S. Korn, MD (1 shared paper) and Jonathan Howard Lin, MD (1 shared paper).
What insurance does Dr. Usha Rajapuram Kumar accept?
Dr. Kumar is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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