Dr. Subbarayan Krishnan, MD
- Medicare services, 2022
- 196
- Part D claims, 2024
- 25
- Industry payments
- $631
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 11234 Anderson St, Loma Linda, CA 92354
- Practice phone
- Call (909) 558-4456
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Loma Linda University Medical Center
Loma Linda, California
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Dr. Subbarayan Krishnan is an internist in Loma Linda, California
Dr. Krishnan practices at Loma Linda University Medical Center in Loma Linda, California.
Dr. Krishnan's NPI, 1023047198, was assigned on July 1, 2006. Dr. Krishnan graduated from Tirunelveli Med Coll in 1975. Dr. Krishnan holds California license A054481.
- NPI
- 1023047198NPI Registry (opens in a new tab)
- NPI enumeration date
- July 1, 2006
- NPI status
- Active
- Practice phone
- (909) 558-4456
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Subbarayan Krishnan practices at Loma Linda University Medical Center in Loma Linda, California
Dr. Krishnan's primary practice is Loma Linda University Medical Center, at 11234 Anderson St, Loma Linda, CA 92354 in San Bernardino County. The practice phone is (909) 558-4456.
- Loma Linda University Medical Center11234 Anderson St, Loma Linda, CA 92354 · San Bernardino CountyPhone(909) 558-4456
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Subbarayan Krishnan is affiliated with 2 sites of care and 1 medical group
Dr. Krishnan's primary practice is Loma Linda University Medical Center in Loma Linda, California. The medical group on file is Optum - Downtown Los Angeles. Dmand AI also links Dr. Krishnan to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Subbarayan Krishnan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Krishnan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loma Linda University Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Subbarayan Krishnan is one of 16,751 internists in California
Internal medicine is Dr. Krishnan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Krishnan is board certified in internal medicine by the American Board of Internal Medicine. Dr. Krishnan is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Krishnan
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. Subbarayan Krishnan billed Medicare for 196 services in 2022
CMS data shows 196 Medicare services from Dr. Krishnan across 4 procedure codes in 2022. Medicare paid $10,889 for them. Every service was in an office.
Dr. Krishnan's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 912022: 15166%
- Tests and treatments
- 2021: 02022: 25
- Other services
- 2021: 02022: 20
Dr. Krishnan compared with the California median for internists, 2022
- Dr. Krishnan
- California median
- Medicare services
- 196vs 36146% below
- Part D claims
- 790vs 42188% above
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Krishnan's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Krishnan and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Subbarayan Krishnan's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Krishnan's median patient age at 72, with 59% women.
Dr. Krishnan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women59%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. Subbarayan Krishnan wrote 25 Medicare Part D claims in 2024
In 2024, Dr. Krishnan wrote 25 Medicare Part D claims. 68% of them were for generic drugs. They cover 31 drugs, with $13,452 in total drug cost. In 2022, CMS named 7,330 claims across 144 drugs.
Dr. Krishnan's Part D claims by kind of drug, 2024
- Generic17 claims68%
- Brand-name and other8 claims32%
Dr. Krishnan's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 7,3302023: 79089%
Drugs named by CMS: 31 in 2023, 144 in 2022.
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. Subbarayan Krishnan received $631 in industry payments from 2016 to 2022
CMS Open Payments shows 12 general payments to Dr. Krishnan from 5 drug and device companies from 2016 to 2022. Travel and lodging make up the largest share, 56% of the total. Coloplast Corp paid the most, $453.
General payments to Dr. Krishnan by program year, 2016 to 2022
General payments to Dr. Krishnan by kind, 2016 to 2022
- Travel and lodging$35256%
- Food and beverage$23036%
- Education$508%
Companies that paid Dr. Krishnan the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Subbarayan Krishnan graduated from Tirunelveli Med Coll
Dr. Krishnan graduated from Tirunelveli Med Coll in 1975.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Subbarayan Krishnan'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)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 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) |
| 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. Subbarayan Krishnan
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. Subbarayan Krishnan's NPI number?
Dr. Subbarayan Krishnan's NPI number is 1023047198. It was assigned on July 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Subbarayan Krishnan?
Dr. Subbarayan Krishnan is an internist in Loma Linda, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Subbarayan Krishnan practice?
Dr. Krishnan practices at 11234 Anderson St, Loma Linda, CA 92354. Dr. Krishnan's primary practice is Loma Linda University Medical Center in Loma Linda, California. Dmand AI also links Dr. Krishnan to 1 group practice or clinic.
What is Dr. Subbarayan Krishnan's office phone number?
The practice phone on file for Dr. Krishnan is (909) 558-4456.
What is Dr. Subbarayan Krishnan's medical license number?
Dr. Krishnan holds California license A054481.
What medical group is Dr. Subbarayan Krishnan part of?
Dr. Krishnan is linked to Optum - Downtown Los Angeles.
Does Dr. Subbarayan Krishnan accept Medicare?
Yes. CMS data shows Dr. Krishnan billed Medicare for 196 services in 2022.
Is Dr. Subbarayan Krishnan board certified?
Yes. Dr. Krishnan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Subbarayan Krishnan bill to Medicare?
In 2022, Dr. Krishnan's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and infusion or chemotherapy administration (96372).
Where did Dr. Subbarayan Krishnan go to medical school?
Dr. Krishnan graduated from Tirunelveli Med Coll in 1975.
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What drugs does Dr. Subbarayan Krishnan prescribe most?
In 2023 Medicare Part D data, Dr. Krishnan's most prescribed drugs by claims were Amlodipine Besylate, Levothyroxine Sodium and Omeprazole.
Has Dr. Subbarayan Krishnan received payments from drug or device companies?
CMS Open Payments shows $631 in general payments to Dr. Krishnan from 5 companies from 2016 to 2022. The largest total came from Coloplast Corp.
How long has Dr. Subbarayan Krishnan been practicing?
Dr. Krishnan graduated from medical school in 1975, 51 years ago.
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