Oncology (Williston Park)
Dr. Ram V. Patak, MD
- Medicare services, 2024
- 46
- Medicare patients, 2024
- 36
- Part D claims, 2024
- 402
- Publications
- 18
- Clinical trials
- 3
- Practice address
- 19333 Business Center Drive, Northridge, CA 91324
- Practice phone
- Call (818) 709-9999
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northridge Kidney Care Center
Dialysis Center - Independent · Northridge, California
Find Dr. Patak'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. Ram V. Patak is a nephrologist in Northridge, California
Dr. Patak practices at Northridge Kidney Care Center in Northridge, California.
Dr. Patak's NPI, 1144218488, was assigned on October 11, 2005. Dr. Patak graduated from Mysore Medical College in 1966. Dr. Patak holds California license C39711.
- NPI
- 1144218488NPI Registry (opens in a new tab)
- NPI enumeration date
- October 11, 2005
- NPI status
- Active
- Practice phone
- (818) 709-9999
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 86
- Medical school graduation
- 1966
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ram V. Patak practices at Northridge Kidney Care Center in Northridge, California
Dr. Patak's primary practice is Northridge Kidney Care Center, at 19333 Business Center Drive, Northridge, CA 91324 in Los Angeles County. The practice phone is (818) 709-9999.
- Northridge Kidney Care Center19333 Business Center Drive, Northridge, CA 91324 · Los Angeles CountyPhone(818) 709-9999
Source: Dmand AI Affiliation Data
Dr. Ram V. Patak is affiliated with 2 sites of care and 1 medical group
Dr. Patak's primary practice is Northridge Kidney Care Center in Northridge, California. The medical group on file is Kidney And Hypertension Consultants. Dmand AI also links Dr. Patak to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ram V. Patak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Patak practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northridge Kidney Care 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. Ram V. Patak is one of 1,401 nephrologists in California
Nephrology is Dr. Patak's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Patak is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Patak's licenses on file in 4 states: California, Kansas, Texas and New York.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
- Kansas license
- Texas license
- New York license
Clinical focus
Dmand AI lists chronic anemia and chronic kidney disease among the conditions Dr. Patak treats.
Nephrologists near Dr. Patak
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. Ram V. Patak billed Medicare for 46 services in 2024
CMS data shows 46 Medicare services from Dr. Patak across 1 procedure code in 2024, all of them office visits, for 36 Medicare patients. Medicare paid $1,564 for them. Every service was in an office.
Dr. Patak's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 932024: 4651%
Dr. Patak compared with the California median for nephrologists, 2024
- Dr. Patak
- California median
- Medicare services
- 46vs 1,08496% below
- Medicare patients
- 36vs 30788% below
- Part D claims
- 257vs 95573% below
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Patak'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. Patak and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ram V. Patak treated 36 Medicare patients in 2024, average age 74
CMS counts 36 Medicare patients who saw Dr. Patak in 2024. The largest group is 65 to 74, with 16 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 58% are also on Medicaid. Their average risk score is 1.98, 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. Patak's median patient age at 67, with 44% women.
Dr. Patak's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Patak's Medicare patients by sex, 2024
- Women1747%
- Men1953%
Chronic conditions among Dr. Patak's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Arthritis72%
- Diabetes72%
- Ischemic heart disease53%
- Heart failure31%
- Mood disorders31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Patak'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
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ram V. Patak wrote 402 Medicare Part D claims in 2024
In 2024, Dr. Patak wrote 402 Medicare Part D claims for 79 patients. 73% of them were for generic drugs. CMS names the drug for 257 of them, across 11 drugs with 11 or more claims each, at $81,558 in total drug cost. In 2023, CMS named 297 claims across 11 drugs.
Dr. Patak's Part D claims by kind of drug, 2024
- Generic293 claims73%
- Brand-name and other109 claims27%
Dr. Patak'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: 2972024: 25713%
Drugs named by CMS: 11 in 2024, 11 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
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Dr. Ram V. Patak has 18 publications on record
Dmand AI links 18 papers to Dr. Patak. The most frequent topics are Acute Kidney Injury, Kidney and Dogs. Dr. Patak has published most often in J Kans Med Soc. Dr. Patak's most frequent co-authors are Stephen Zale Fadem, MD, Richard H. Mauk, MD and Steven G. Rosenblatt, MD.
Topics Dr. Patak writes about most
- Acute Kidney Injury
- Kidney
- Dogs
- Prostaglandins E
- Sodium
- Furosemide
- Glomerular Filtration Rate
- Regional Blood Flow
Dr. Patak's most frequent co-authors
- Stephen Zale Fadem, MD5 shared papers
- Richard H. Mauk, MD1 shared paper
- Steven G. Rosenblatt, MD1 shared paper
Recent publications by Dr. Patak
Ann Intern Med
See who Dr. Patak researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Patak works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ram V. Patak has worked on 3 clinical trials
Dmand AI links Dr. Patak to 3 clinical trials. Conditions studied include Fibromyalgia, Muscular Diseases and Renal Insufficiency, Chronic. Daiichi Sankyo sponsors the most, 3. Open Payments lists research payments to Dr. Patak that name 4 trials.
Conditions in Dr. Patak's trials
- Fibromyalgia
- Muscular Diseases
- Renal Insufficiency, Chronic
Investigators on the most trials with Dr. Patak
- Vicki Joyce Conrad, MD3 shared trials
- James I. Fidelholtz, MD3 shared trials
- Alexander Philip Ford, MD3 shared trials
Recent clinical trials with Dr. Patak
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Ram V. Patak received $12,670 in industry payments from 2016 to 2025
CMS Open Payments shows 219 general payments to Dr. Patak from 34 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,182. It also lists 137 research payments totaling $115,123 from 2016 to 2024, naming 4 clinical trials.
General payments to Dr. Patak by program year, 2016 to 2025
General payments to Dr. Patak by kind, 2016 to 2025
- Food and beverage$12,56499%
- Education$1061%
Companies that paid Dr. Patak 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. Ram V. Patak graduated from Mysore Medical College
Dr. Patak graduated from Mysore Medical College in 1966. Dr. Patak is a member of ASN and ISN.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Ram V. Patak accepts plans from 9 insurance carriers
Dr. Patak is in network with 9 carriers, including Blue Cross Blue Shield of Michigan, LA Care and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- LA Care
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
- Molina
- Regence Health Plans
- CMS Medicare
- +1 more carriersWith a free account
Plan types Dr. Patak accepts, by number of carriers
- Medicare7
- HMO5
- PPO4
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ram V. Patak'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. Ram V. Patak
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. Ram V. Patak's NPI number?
Dr. Ram V. Patak's NPI number is 1144218488. It was assigned on October 11, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Ram V. Patak?
Dr. Ram V. Patak is a nephrologist in Northridge, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Ram V. Patak practice?
Dr. Patak practices at 19333 Business Center Drive, Northridge, CA 91324. Dr. Patak's primary practice is Northridge Kidney Care Center in Northridge, California. Dmand AI also links Dr. Patak to 1 group practice or clinic.
What is Dr. Ram V. Patak's office phone number?
The practice phone on file for Dr. Patak is (818) 709-9999.
What is Dr. Ram V. Patak's medical license number?
Dr. Patak holds California license C39711, one of the licenses on file in 4 states.
Which states has Dr. Ram V. Patak been licensed in?
Dmand AI has state licenses on file for Dr. Patak in California (1981 to 2027), Kansas (1978 to 2014), Texas (1976 to 2013) and New York (1975 to 2005).
What medical group is Dr. Ram V. Patak part of?
Dr. Patak is linked to Kidney And Hypertension Consultants.
Does Dr. Ram V. Patak accept Medicare?
Yes. CMS data shows Dr. Patak billed Medicare for 46 services in 2024.
How many Medicare patients does Dr. Ram V. Patak see?
CMS counts 36 Medicare patients who saw Dr. Patak in 2024, with an average age of 74.
Is Dr. Ram V. Patak board certified?
Yes. Dr. Patak is board certified in internal medicine by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Ram V. Patak bill to Medicare?
In 2024, Dr. Patak's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Ram V. Patak go to medical school?
Dr. Patak graduated from Mysore Medical College in 1966.
What drugs does Dr. Ram V. Patak prescribe most?
In 2024 Medicare Part D data, Dr. Patak's most prescribed drugs by claims were Furosemide, Procrit and Lokelma.
Has Dr. Ram V. Patak received payments from drug or device companies?
CMS Open Payments shows $12,670 in general payments to Dr. Patak from 34 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Ram V. Patak been practicing?
Dr. Patak graduated from medical school in 1966, 60 years ago.
Does Dr. Ram V. Patak do research?
Dmand AI links 18 publications to Dr. Patak. Dr. Patak has worked on 3 clinical trials.
Who does Dr. Ram V. Patak publish with?
Dr. Patak's most frequent co-authors are Stephen Zale Fadem, MD (5 shared papers), Richard H. Mauk, MD (1 shared paper) and Steven G. Rosenblatt, MD (1 shared paper).
What insurance does Dr. Ram V. Patak accept?
Dr. Patak is in network with 9 carriers, including Blue Cross Blue Shield of Michigan, LA Care and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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