Dr. Subrahmanyam Nasika, MD

  • Stockton, CA
  • Nephrologist
NPI1548449846PAC ID9931248044
Medicare services, 2024
2,892
Medicare patients, 2024
764
Part D claims, 2024
5,046
Hospital affiliations
5
Industry payments
$5,949
Practice address
1523 E March Lane, Stockton, CA 95210
Practice phone
Call (209) 472-3300
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

DaVita Stockton Kidney Center

Dialysis Center - Independent · Stockton, California

See all 12 affiliations

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Dr. Subrahmanyam Nasika is a nephrologist in Stockton, California

Dr. Nasika practices at DaVita Stockton Kidney Center in Stockton, California.

Dr. Nasika's NPI, 1548449846, was assigned on November 2, 2007. Dr. Nasika graduated from Guntur Medical College NTR in 2002. Dr. Nasika holds California license A108186.

NPI and contact details
Medicare PAC ID
9931248044
NPI enumeration date
November 2, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(209) 472-3300
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
50
Medical school graduation
2002

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Subrahmanyam Nasika practices at DaVita Stockton Kidney Center in Stockton, California

Dr. Nasika's primary practice is DaVita Stockton Kidney Center, at 1523 E March Lane, Stockton, CA 95210 in San Joaquin County. The practice phone is (209) 472-3300.

  • DaVita Stockton Kidney Center
    1523 E March Lane, Stockton, CA 95210 · San Joaquin CountyPhone(209) 472-3300

Source: Dmand AI Affiliation Data

Dr. Subrahmanyam Nasika is affiliated with 11 sites of care and 1 medical group

Dr. Nasika's primary practice is DaVita Stockton Kidney Center in Stockton, California. Dr. Nasika is also affiliated with Dignity Health - St. Joseph's Medical Center. The medical group on file is San Joaquin Kidney Clinic, Inc. Dmand AI also links Dr. Nasika to 4 more hospitals, 4 dialysis centers and 1 group practice or clinic, each named with a free account.

See all 12 affiliations for Dr. Nasika

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Subrahmanyam Nasika's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nasika practices, 11 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
DaVita Stockton Kidney CenterAvailable with a free account
+10 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Subrahmanyam Nasika is one of 1,401 nephrologists in California

Nephrology is Dr. Nasika's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Nasika is board certified in internal medicine by the American Board of Internal Medicine. Dr. Nasika is licensed in California.

Specialties and state licenses

  • Nephrology, CaliforniaPrimaryLicense A108186 · 2009 to 2026 · taxonomy 207RN0300X

Clinical focus

Dmand AI lists acute kidney failure, chronic anemia, chronic kidney disease and fluid and electrolyte imbalances among the conditions Dr. Nasika treats.

Nephrologists near Dr. Nasika

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. Subrahmanyam Nasika billed Medicare for 2,892 services in 2024

CMS data shows 2,892 Medicare services from Dr. Nasika across 12 procedure codes in 2024, for 764 Medicare patients. Medicare paid $279,763 for them.

Medicare services, 20242,892
Medicare patients764
Paid by Medicare$279,763
Procedure codes12

Dr. Nasika's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2,6692024: 2,5156%
Tests and treatments
2023: 4372024: 36616%
Lab and pathology
2023: 02024: 11

Where Dr. Nasika's Medicare services took place, 2024

  • In an office1,01235%
  • In a facility1,88065%

Dr. Nasika compared with the California median for nephrologists, 2024

  • Dr. Nasika
  • California median
Medicare services
2,892vs 1,0842.7 times
Medicare patients
764vs 3072.5 times
Part D claims
4,677vs 9554.9 times

Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.

Dr. Nasika'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Subrahmanyam Nasika treated 764 Medicare patients in 2024, average age 74

CMS counts 764 Medicare patients who saw Dr. Nasika in 2024. The largest group is 75 to 84, with 263 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 57% are also on Medicaid. Their average risk score is 3.71, 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. Nasika's median patient age at 70, with 48% women.

Medicare patients, 2024764
Average age74
Average risk score3.71
Also on Medicaid57%

Dr. Nasika's Medicare patients by age, 2024

Dr. Nasika's Medicare patients by sex, 2024

  • Women37349%
  • Men39151%

Chronic conditions among Dr. Nasika's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes68%
  5. Heart failure54%
  6. Ischemic heart disease52%
  7. Arthritis40%
  8. Atrial fibrillation34%

Share of Medicare patients with each condition. A patient can have several.

Dr. Nasika's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women48%
  • Men51%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Subrahmanyam Nasika wrote 5,046 Medicare Part D claims in 2024

In 2024, Dr. Nasika wrote 5,046 Medicare Part D claims for 547 patients. 84% of them were for generic drugs. CMS names the drug for 4,677 of them, across 69 drugs with 11 or more claims each, at $1,064,330 in total drug cost. In 2023, CMS named 4,156 claims across 61 drugs.

Part D claims, 20245,046
Drugs named by CMS69
Total drug cost$1.1M
Part D patients547

Dr. Nasika's Part D claims by kind of drug, 2024

  • Generic4,245 claims84%
  • Brand-name770 claims15%
  • Other31 claims1%

Dr. Nasika'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. Nasika's Part D claims, 2024

  • Antibiotics1%65 of 5,046 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: 4,1562024: 4,67713%

Drugs named by CMS: 69 in 2024, 61 in 2023.

See all prescribing by Dr. Nasika

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. Subrahmanyam Nasika takes part in Medicare

Dr. Nasika 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. Subrahmanyam Nasika received $5,949 in industry payments from 2016 to 2025

CMS Open Payments shows 329 general payments to Dr. Nasika from 32 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. AstraZeneca Pharmaceuticals LP paid the most, $647.

General payments to Dr. Nasika by program year, 2016 to 2025

General payments to Dr. Nasika by kind, 2016 to 2025

$5.9Kin total
  • Food and beverage$5,82698%
  • Education$1242%

Companies that paid Dr. Nasika the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Nasika

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Subrahmanyam Nasika has 1 award and honors on record

Dmand AI lists 1 award for Dr. Nasika, most recently CMS Stage 1 2012 in 2012.

Awards and honors for Dr. Nasika

  1. 2012
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. Subrahmanyam Nasika graduated from Guntur Medical College NTR

Dr. Nasika graduated from Guntur Medical College NTR in 2002.

  1. Medical schoolGuntur Medical College NTR
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in nephrologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Subrahmanyam Nasika accepts plans from 16 insurance carriers

Dr. Nasika is in network with 16 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • Regence Health Plans
  • Alliant Health Plans
  • +8 more carriersWith a free account

Plan types Dr. Nasika accepts, by number of carriers

  1. PPO9
  2. HMO7
  3. Medicare7
  4. EPO4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Subrahmanyam Nasika's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Subrahmanyam Nasika

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. Subrahmanyam Nasika's NPI number?

Dr. Subrahmanyam Nasika's NPI number is 1548449846. It was assigned on November 2, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Subrahmanyam Nasika?

Dr. Subrahmanyam Nasika is a nephrologist in Stockton, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Subrahmanyam Nasika practice?

Dr. Nasika practices at 1523 E March Lane, Stockton, CA 95210. Dr. Nasika's primary practice is DaVita Stockton Kidney Center in Stockton, California. Dmand AI also links Dr. Nasika to 4 hospitals, 4 dialysis centers and 1 group practice or clinic.

What is Dr. Subrahmanyam Nasika's office phone number?

The practice phone on file for Dr. Nasika is (209) 472-3300.

What is Dr. Subrahmanyam Nasika's medical license number?

Dr. Nasika holds California license A108186.

Which hospitals is Dr. Subrahmanyam Nasika affiliated with?

Dr. Nasika is affiliated with Dignity Health - St. Joseph's Medical Center. Dmand AI links Dr. Nasika to 4 more hospitals.

What medical group is Dr. Subrahmanyam Nasika part of?

Dr. Nasika is linked to San Joaquin Kidney Clinic, Inc.

Does Dr. Subrahmanyam Nasika accept Medicare?

Yes. CMS data shows Dr. Nasika billed Medicare for 2,892 services in 2024, and Dr. Nasika accepts Medicare assignment.

How many Medicare patients does Dr. Subrahmanyam Nasika see?

CMS counts 764 Medicare patients who saw Dr. Nasika in 2024, with an average age of 74.

Is Dr. Subrahmanyam Nasika board certified?

Yes. Dr. Nasika is board certified in internal medicine by the American Board of Internal Medicine.

Show 6 more questionsShow fewer questions

What services does Dr. Subrahmanyam Nasika bill to Medicare?

In 2024, Dr. Nasika's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99213) and dialysis (90960).

Where did Dr. Subrahmanyam Nasika go to medical school?

Dr. Nasika graduated from Guntur Medical College NTR in 2002.

What drugs does Dr. Subrahmanyam Nasika prescribe most?

In 2024 Medicare Part D data, Dr. Nasika's most prescribed drugs by claims were Calcitriol, Furosemide and Amlodipine Besylate.

Has Dr. Subrahmanyam Nasika received payments from drug or device companies?

CMS Open Payments shows $5,949 in general payments to Dr. Nasika from 32 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Subrahmanyam Nasika been practicing?

Dr. Nasika graduated from medical school in 2002, 24 years ago.

What insurance does Dr. Subrahmanyam Nasika accept?

Dr. Nasika is in network with 16 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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