Dr. Vaijayanthy Rangarajan, MD
- Medicare services, 2024
- 616
- Medicare patients, 2024
- 202
- Part D claims, 2024
- 1,555
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 795 El Camino Real, Palo Alto, CA 94301
- Practice phone
- Call (650) 324-1832
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surgery Center Palo Alto
Surgery Center - Medicare-Certified · Palo Alto, California
Find Dr. Rangarajan'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. Vaijayanthy Rangarajan is an internist in Palo Alto, California
Dr. Rangarajan practices at Surgery Center Palo Alto in Palo Alto, California.
Dr. Rangarajan's NPI, 1518074491, was assigned on August 24, 2006. Dr. Rangarajan graduated from UC San Diego School of Medicine in 1998. Dr. Rangarajan's California license number on file is A71285.
- NPI
- 1518074491NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608938568
- NPI enumeration date
- August 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (650) 324-1832
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Vaijayanthy Rangarajan practices at Surgery Center Palo Alto in Palo Alto, California
Dr. Rangarajan's primary practice is Surgery Center Palo Alto, at 795 El Camino Real, Palo Alto, CA 94301. The practice phone is (650) 324-1832.
- Surgery Center Palo Alto795 El Camino Real, Palo Alto, CA 94301Phone(650) 324-1832
Source: Dmand AI Affiliation Data
Dr. Vaijayanthy Rangarajan is affiliated with 5 sites of care and 1 medical group
Dr. Rangarajan's primary practice is Surgery Center Palo Alto in Palo Alto, California. Dr. Rangarajan is also affiliated with Mills-Peninsula Medical Center. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Rangarajan to 2 more home health agencies and 1 group practice or clinic, 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. Vaijayanthy Rangarajan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rangarajan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surgery Center Palo Alto | 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. Vaijayanthy Rangarajan is one of 16,751 internists in California
Internal medicine is Dr. Rangarajan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Rangarajan is board certified in internal medicine by the American Board of Internal Medicine. Dr. Rangarajan has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute kidney failure, acute sinusitis, adjustment disease, alzheimer's disease, arthritis, atrial fibrillation and flutter and benign or precancerous skin growths among the conditions Dr. Rangarajan treats.
Internists near Dr. Rangarajan
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. Vaijayanthy Rangarajan billed Medicare for 616 services in 2024
CMS data shows 616 Medicare services from Dr. Rangarajan across 12 procedure codes in 2024, for 202 Medicare patients. Medicare paid $63,698 for them. Every service was in an office.
Dr. Rangarajan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3172024: 316No change
- Other services
- 2023: 1232024: 18954%
- Tests and treatments
- 2023: 132024: 99662%
- Surgery
- 2023: 02024: 12
Dr. Rangarajan compared with the California median for internists, 2024
- Dr. Rangarajan
- California median
- Medicare services
- 616vs 36171% above
- Medicare patients
- 202vs 15134% above
- Part D claims
- 1,179vs 4212.8 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Rangarajan'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rangarajan and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Vaijayanthy Rangarajan treated 202 Medicare patients in 2024, average age 76
CMS counts 202 Medicare patients who saw Dr. Rangarajan in 2024. The largest group is 75 to 84, with 88 patients. 67% of them have high cholesterol, and 50% have high blood pressure. Their average risk score is 0.76, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Rangarajan's median patient age at 61, with 71% women.
Dr. Rangarajan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Rangarajan's Medicare patients by sex, 2024
- Women15577%
- Men4723%
Chronic conditions among Dr. Rangarajan's Medicare patients, 2024
- High cholesterol67%
- High blood pressure50%
- Arthritis34%
- Osteoporosis31%
- Ischemic heart disease17%
- Anxiety16%
- Atrial fibrillation15%
- Cancer14%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rangarajan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women71%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Vaijayanthy Rangarajan wrote 1,555 Medicare Part D claims in 2024
In 2024, Dr. Rangarajan wrote 1,555 Medicare Part D claims for 181 patients. 87% of them were for generic drugs. CMS names the drug for 1,179 of them, across 33 drugs with 11 or more claims each, at $27,867 in total drug cost. In 2023, CMS named 999 claims across 25 drugs.
Dr. Rangarajan's Part D claims by kind of drug, 2024
- Generic1,360 claims87%
- Brand-name and other195 claims13%
Dr. Rangarajan'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. Rangarajan's Part D claims, 2024
- Opioids1%17 of 1,555 claims
- Antibiotics1%22 of 1,555 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: 9992024: 1,17918%
Drugs named by CMS: 33 in 2024, 25 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
Dr. Vaijayanthy Rangarajan offers telehealth to Medicare patients
Dr. Rangarajan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rangarajan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Vaijayanthy Rangarajan has 1 award and honors on record
Dmand AI lists 1 award for Dr. Rangarajan, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Rangarajan
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Vaijayanthy Rangarajan graduated from UC San Diego School of Medicine
Dr. Rangarajan graduated from UC San Diego School of Medicine in 1998.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Vaijayanthy Rangarajan accepts plans from 13 insurance carriers
Dr. Rangarajan is in network with 13 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Alliant Health Plans
- HCSC
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- +5 more carriersWith a free account
Plan types Dr. Rangarajan accepts, by number of carriers
- PPO8
- HMO6
- POS6
- EPO4
- Medicare4
Source: Dmand AI Insurance Network Data
Sources for Dr. Vaijayanthy Rangarajan'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) |
| 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. Vaijayanthy Rangarajan
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. Vaijayanthy Rangarajan's NPI number?
Dr. Vaijayanthy Rangarajan's NPI number is 1518074491. It was assigned on August 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Vaijayanthy Rangarajan?
Dr. Vaijayanthy Rangarajan is an internist in Palo Alto, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Vaijayanthy Rangarajan practice?
Dr. Rangarajan practices at 795 El Camino Real, Palo Alto, CA 94301. Dr. Rangarajan's primary practice is Surgery Center Palo Alto in Palo Alto, California. Dmand AI also links Dr. Rangarajan to 2 home health agencies and 1 group practice or clinic.
What is Dr. Vaijayanthy Rangarajan's office phone number?
The practice phone on file for Dr. Rangarajan is (650) 324-1832.
What is Dr. Vaijayanthy Rangarajan's medical license number?
Dr. Rangarajan's California license number on file is A71285.
Which hospitals is Dr. Vaijayanthy Rangarajan affiliated with?
Dr. Rangarajan is affiliated with Mills-Peninsula Medical Center.
What medical group is Dr. Vaijayanthy Rangarajan part of?
Dr. Rangarajan is linked to Palo Alto Foundation Medical Group.
Does Dr. Vaijayanthy Rangarajan accept Medicare?
Yes. CMS data shows Dr. Rangarajan billed Medicare for 616 services in 2024, and Dr. Rangarajan accepts Medicare assignment.
Does Dr. Vaijayanthy Rangarajan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Rangarajan as offering telehealth services.
How many Medicare patients does Dr. Vaijayanthy Rangarajan see?
CMS counts 202 Medicare patients who saw Dr. Rangarajan in 2024, with an average age of 76.
Show 6 more questionsShow fewer questions
Is Dr. Vaijayanthy Rangarajan board certified?
Yes. Dr. Rangarajan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Vaijayanthy Rangarajan bill to Medicare?
In 2024, Dr. Rangarajan's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and office visit, established patient (99213).
Where did Dr. Vaijayanthy Rangarajan go to medical school?
Dr. Rangarajan graduated from UC San Diego School of Medicine in 1998.
What drugs does Dr. Vaijayanthy Rangarajan prescribe most?
In 2024 Medicare Part D data, Dr. Rangarajan's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
How long has Dr. Vaijayanthy Rangarajan been practicing?
Dr. Rangarajan graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Vaijayanthy Rangarajan accept?
Dr. Rangarajan is in network with 13 carriers, including Aetna, Elevance and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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