Dr. Vasanthi L. Narayan, MD
- Part D claims, 2024
- 1,252
- Industry payments
- $429
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 441 N Lakeview Ave, Anaheim, CA 92807
- Practice phone
- Call (714) 279-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern California Permanente Medical Group
Anaheim, California
Find Dr. Narayan'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. Vasanthi L. Narayan is an endocrinologist in Anaheim, California
Dr. Narayan practices at Southern California Permanente Medical Group in Anaheim, California.
Dr. Narayan's NPI, 1598939589, was assigned on April 21, 2008. Dr. Narayan graduated from Yale School of Medicine in 2002. Dr. Narayan's California license number on file is 93293.
- NPI
- 1598939589NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426073446
- NPI enumeration date
- April 21, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 279-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Vasanthi L. Narayan practices at Southern California Permanente Medical Group in Anaheim, California
Dr. Narayan's primary practice is Southern California Permanente Medical Group, at 441 N Lakeview Ave, Anaheim, CA 92807 in Orange County. The practice phone is (714) 279-4000.
- Southern California Permanente Medical Group441 N Lakeview Ave, Anaheim, CA 92807 · Orange CountyPhone(714) 279-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Vasanthi L. Narayan is affiliated with 2 sites of care and 1 medical group
Dr. Narayan's primary practice is Southern California Permanente Medical Group in Anaheim, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Narayan 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. Vasanthi L. Narayan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Narayan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern California Permanente Medical Group | 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. Vasanthi L. Narayan is one of 1,062 endocrinologists in California
Endocrinology, diabetes and metabolism is Dr. Narayan's primary specialty in the NPI Registry, under taxonomy code 207RE0101X. Dr. Narayan is board certified in endocrinology, diabetes and metabolism by the American Board of Internal Medicine. Dmand AI has Dr. Narayan's licenses on file in 2 states: California and Connecticut.
Specialties and state licenses
- Endocrinology, diabetes and metabolism, CaliforniaPrimary
- Connecticut license
Endocrinologists near Dr. Narayan
Counts of endocrinologists 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. Vasanthi L. Narayan's patients have a median age of 52
Across all payers, Dmand AI patient panel data puts Dr. Narayan's median patient age at 52, with 64% women.
Dr. Narayan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women64%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. Vasanthi L. Narayan wrote 1,252 Medicare Part D claims in 2024
In 2024, Dr. Narayan wrote 1,252 Medicare Part D claims for 307 patients. 66% of them were for generic drugs. CMS names the drug for 1,104 of them, across 21 drugs with 11 or more claims each, at $231,690 in total drug cost. In 2023, CMS named 1,031 claims across 22 drugs.
Dr. Narayan's Part D claims by kind of drug, 2024
- Generic828 claims66%
- Brand-name334 claims27%
- Other90 claims7%
Dr. Narayan'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: 1,0312024: 1,1047%
Drugs named by CMS: 21 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. Vasanthi L. Narayan takes part in Medicare
Dr. Narayan 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. Vasanthi L. Narayan received $429 in industry payments from 2019 to 2025
CMS Open Payments shows 6 general payments to Dr. Narayan from 4 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $223.
General payments to Dr. Narayan by program year, 2019 to 2025
Companies that paid Dr. Narayan the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Vasanthi L. Narayan has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Narayan, most recently NCQA DRP in 2012.
Awards and honors for Dr. Narayan
- 2012
- NCQA DRP
- 2011
- CMS Stage 1 2012
- Undated
- Bridges to Excellence
Source: Dmand AI Professional Profile Data
Dr. Vasanthi L. Narayan graduated from Yale School of Medicine
Dr. Narayan graduated from Yale School of Medicine in 2002.
- Medical school
- Board certified in endocrinology, diabetes and metabolism
Source: Dmand AI Professional Profile Data
Dr. Vasanthi L. Narayan accepts plans from 2 insurance carriers
Dr. Narayan 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. Narayan accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Vasanthi L. Narayan'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Vasanthi L. Narayan
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. Vasanthi L. Narayan's NPI number?
Dr. Vasanthi L. Narayan's NPI number is 1598939589. It was assigned on April 21, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Vasanthi L. Narayan?
Dr. Vasanthi L. Narayan is an endocrinologist in Anaheim, California. The primary specialty in the NPI Registry is Endocrinology, Diabetes & Metabolism Physician (taxonomy code 207RE0101X).
Where does Dr. Vasanthi L. Narayan practice?
Dr. Narayan practices at 441 N Lakeview Ave, Anaheim, CA 92807. Dr. Narayan's primary practice is Southern California Permanente Medical Group in Anaheim, California. Dmand AI also links Dr. Narayan to 1 group practice or clinic.
What is Dr. Vasanthi L. Narayan's office phone number?
The practice phone on file for Dr. Narayan is (714) 279-4000.
What is Dr. Vasanthi L. Narayan's medical license number?
Dr. Narayan's California license number on file is 93293, one of the licenses on file in 2 states.
Which states has Dr. Vasanthi L. Narayan been licensed in?
Dmand AI has state licenses on file for Dr. Narayan in California (2005 to 2025) and Connecticut (2005).
What medical group is Dr. Vasanthi L. Narayan part of?
Dr. Narayan is linked to Southern California Permanente Medical Group.
Does Dr. Vasanthi L. Narayan accept Medicare?
Yes. CMS lists Dr. Narayan as accepting Medicare assignment.
Is Dr. Vasanthi L. Narayan board certified?
Yes. Dr. Narayan is board certified in endocrinology, diabetes and metabolism by the American Board of Internal Medicine.
Where did Dr. Vasanthi L. Narayan go to medical school?
Dr. Narayan graduated from Yale School of Medicine in 2002.
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What drugs does Dr. Vasanthi L. Narayan prescribe most?
In 2024 Medicare Part D data, Dr. Narayan's most prescribed drugs by claims were Levothyroxine Sodium, Alendronate Sodium and Forteo.
Has Dr. Vasanthi L. Narayan received payments from drug or device companies?
CMS Open Payments shows $429 in general payments to Dr. Narayan from 4 companies from 2019 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Vasanthi L. Narayan been practicing?
Dr. Narayan graduated from medical school in 2002, 24 years ago.
What insurance does Dr. Vasanthi L. Narayan accept?
Dr. Narayan 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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