Dr. Ramani Nathan, MD
- Medicare services, 2024
- 146
- Medicare patients, 2024
- 20
- Part D claims, 2024
- 186
- Industry payments
- $479
- Affiliated sites
- 5
- Practice address
- 4201e La Palma Avenue, Suite 4211, Anaheim, CA 92807
- Practice phone
- Call (714) 996-2900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
DaVita Anaheim Hills Dialysis
Dialysis Center - Independent · Anaheim, California
Find Dr. Nathan'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. Ramani Nathan is a nephrologist in Anaheim, California
Dr. Nathan practices at DaVita Anaheim Hills Dialysis in Anaheim, California.
Dr. Nathan's NPI, 1487623724, was assigned on March 17, 2006. Dr. Nathan graduated from All India Institute of Medical Sciences in 1965. Dr. Nathan holds California license A26761.
- NPI
- 1487623724NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224023189
- NPI enumeration date
- March 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 996-2900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 88
- Medical school graduation
- 1965
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ramani Nathan practices at 2 locations in Anaheim, California
Dr. Nathan's primary practice is DaVita Anaheim Hills Dialysis, at 4201e La Palma Avenue, Suite 4211, Anaheim, CA 92807 in Orange County. The practice phone is (714) 996-2900. Dr. Nathan also practices at Anaheim Hills Dialysis, 4201 E La Palma Ave, Anaheim, CA 92807.
- DaVita Anaheim Hills DialysisPrimary4201e La Palma Avenue, Suite 4211, Anaheim, CA 92807 · Orange CountyPhone(714) 996-2900
- Anaheim Hills Dialysis4201 E La Palma Ave, Anaheim, CA 92807 · Orange CountyPhone(714) 996-2900
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Ramani Nathan is affiliated with 5 sites of care and 1 medical group
Dr. Nathan's primary practice is DaVita Anaheim Hills Dialysis in Anaheim, California. The medical group on file is Southern California Kidney Consultants. Dmand AI also links Dr. Nathan to 3 more dialysis centers 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. Ramani Nathan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nathan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| DaVita Anaheim Hills Dialysis | 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. Ramani Nathan is one of 1,401 nephrologists in California
Nephrology is Dr. Nathan's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Nathan is board certified in internal medicine by the American Board of Internal Medicine. Dr. Nathan is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Nephrologists near Dr. Nathan
Counts of nephrologists 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. Ramani Nathan billed Medicare for 146 services in 2024
CMS data shows 146 Medicare services from Dr. Nathan across 1 procedure code in 2024, for 20 Medicare patients. Medicare paid $42,695 for them. Every service was in an office.
Dr. Nathan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1382024: 1466%
Dr. Nathan compared with the California median for nephrologists, 2024
- Dr. Nathan
- California median
- Medicare services
- 146vs 1,08487% below
- Medicare patients
- 20vs 30793% below
- Part D claims
- 90vs 95591% below
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Nathan'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. Nathan and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ramani Nathan treated 20 Medicare patients in 2024, average age 68
CMS counts 20 Medicare patients who saw Dr. Nathan in 2024. 75% of them have chronic kidney disease, and 75% have diabetes. Their average risk score is 9.60, 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. Nathan's median patient age at 67, with 20% women.
Chronic conditions among Dr. Nathan's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Heart failure60%
- Ischemic heart disease55%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nathan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women20%
- Men79%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ramani Nathan wrote 186 Medicare Part D claims in 2024
In 2024, Dr. Nathan wrote 186 Medicare Part D claims for 25 patients. 81% of them were for generic drugs. CMS names the drug for 90 of them, across 4 drugs with 11 or more claims each, at $15,785 in total drug cost. In 2023, CMS named 79 claims across 5 drugs.
Dr. Nathan's Part D claims by kind of drug, 2024
- Generic150 claims81%
- Brand-name and other36 claims19%
Dr. Nathan'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: 792024: 9014%
Drugs named by CMS: 4 in 2024, 5 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. Ramani Nathan takes part in Medicare
Dr. Nathan 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. Ramani Nathan received $479 in industry payments from 2016 to 2023
CMS Open Payments shows 6 general payments to Dr. Nathan from 4 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $240.
General payments to Dr. Nathan by program year, 2016 to 2023
Companies that paid Dr. Nathan the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ramani Nathan graduated from All India Institute of Medical Sciences
Dr. Nathan graduated from All India Institute of Medical Sciences in 1965.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Ramani Nathan accepts plans from 10 insurance carriers
Dr. Nathan is in network with 10 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- LA Care
- Molina
- +2 more carriersWith a free account
Plan types Dr. Nathan accepts, by number of carriers
- Medicare8
- PPO7
- HMO6
- POS3
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ramani Nathan'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 Affiliation DataDmand AI Practice 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) |
| 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. Ramani Nathan
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. Ramani Nathan's NPI number?
Dr. Ramani Nathan's NPI number is 1487623724. It was assigned on March 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ramani Nathan?
Dr. Ramani Nathan is a nephrologist in Anaheim, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Ramani Nathan practice?
Dr. Nathan practices at 4201e La Palma Avenue, Suite 4211, Anaheim, CA 92807. Dr. Nathan also practices at 4201 E La Palma Ave, Anaheim, CA 92807. Dr. Nathan's primary practice is DaVita Anaheim Hills Dialysis in Anaheim, California. Dmand AI also links Dr. Nathan to 3 dialysis centers and 1 group practice or clinic.
What is Dr. Ramani Nathan's office phone number?
The practice phone on file for Dr. Nathan is (714) 996-2900.
What is Dr. Ramani Nathan's medical license number?
Dr. Nathan holds California license A26761.
What medical group is Dr. Ramani Nathan part of?
Dr. Nathan is linked to Southern California Kidney Consultants.
Does Dr. Ramani Nathan accept Medicare?
Yes. CMS data shows Dr. Nathan billed Medicare for 146 services in 2024, and Dr. Nathan accepts Medicare assignment.
How many Medicare patients does Dr. Ramani Nathan see?
CMS counts 20 Medicare patients who saw Dr. Nathan in 2024, with an average age of 68.
Is Dr. Ramani Nathan board certified?
Yes. Dr. Nathan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Ramani Nathan bill to Medicare?
In 2024, Dr. Nathan's most billed Medicare services were dialysis (90960).
Show 5 more questionsShow fewer questions
Where did Dr. Ramani Nathan go to medical school?
Dr. Nathan graduated from All India Institute of Medical Sciences in 1965.
What drugs does Dr. Ramani Nathan prescribe most?
In 2024 Medicare Part D data, Dr. Nathan's most prescribed drugs by claims were Prosol, Sevelamer Carbonate and Calcium Acetate.
Has Dr. Ramani Nathan received payments from drug or device companies?
CMS Open Payments shows $479 in general payments to Dr. Nathan from 4 companies from 2016 to 2023. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Ramani Nathan been practicing?
Dr. Nathan graduated from medical school in 1965, 61 years ago.
What insurance does Dr. Ramani Nathan accept?
Dr. Nathan is in network with 10 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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