Dr. Kristina K. Ishihara, MD
- Medicare services, 2019
- 11
- Medicare patients, 2024
- 25
- Part D claims, 2024
- 6,952
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 7373 West Ln, Stockton, CA 95210
- Practice phone
- Call (209) 476-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Stockton, California
Find Dr. Ishihara'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. Kristina K. Ishihara is an internist in Stockton, California
Dr. Ishihara practices at Permanente Medical Group Inc in Stockton, California.
Dr. Ishihara's NPI, 1376621029, was assigned on November 1, 2006. Dr. Ishihara graduated from Vanderbilt University School Of Medicine in 1997. Dr. Ishihara holds California license A68165.
- NPI
- 1376621029NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072793538
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (209) 476-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kristina K. Ishihara practices at Permanente Medical Group Inc in Stockton, California
Dr. Ishihara's primary practice is Permanente Medical Group Inc, at 7373 West Ln, Stockton, CA 95210 in San Joaquin County. The practice phone is (209) 476-2000.
- Permanente Medical Group Inc7373 West Ln, Stockton, CA 95210 · San Joaquin CountyPhone(209) 476-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Kristina K. Ishihara is affiliated with 3 sites of care and 1 medical group
Dr. Ishihara's primary practice is Permanente Medical Group Inc in Stockton, California. Dr. Ishihara is also affiliated with Kaiser Permanente South Sacramento Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Ishihara 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. Kristina K. Ishihara's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ishihara practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kristina K. Ishihara is one of 16,751 internists in California
Internal medicine is Dr. Ishihara's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ishihara is board certified in internal medicine by the American Board of Internal Medicine. Dr. Ishihara is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists arthritis, cerebrovascular disease, chronic anemia, chronic diabetes, chronic hypertension, chronic obstructive pulmonary disease (COPD), enlarged prostate and gout among the conditions Dr. Ishihara treats.
Internists near Dr. Ishihara
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. Kristina K. Ishihara billed Medicare for 11 services in 2019
CMS data shows 11 Medicare services from Dr. Ishihara across 1 procedure code in 2019, for 25 Medicare patients. Medicare paid $592 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ishihara compared with the California median for internists, 2019
- Dr. Ishihara
- California median
- Medicare services
- 11vs 36197% below
- Medicare patients
- 25vs 15183% below
- Part D claims
- 6,448vs 42115.3 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Ishihara's most billed Medicare procedure codes, 2019
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. Ishihara and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kristina K. Ishihara treated 25 Medicare patients in 2024, average age 71
CMS counts 25 Medicare patients who saw Dr. Ishihara in 2024. 75% of them have high blood pressure, and 60% have chronic kidney disease. Their average risk score is 1.66, 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. Ishihara's median patient age at 64, with 66% women.
Chronic conditions among Dr. Ishihara's Medicare patients, 2024
- High blood pressure75%
- Chronic kidney disease60%
- High cholesterol56%
- Diabetes44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ishihara's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women66%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kristina K. Ishihara wrote 6,952 Medicare Part D claims in 2024
In 2024, Dr. Ishihara wrote 6,952 Medicare Part D claims for 797 patients. 92% of them were for generic drugs. CMS names the drug for 6,448 of them, across 116 drugs with 11 or more claims each, at $236,120 in total drug cost. In 2023, CMS named 6,528 claims across 107 drugs.
Dr. Ishihara's Part D claims by kind of drug, 2024
- Generic6,404 claims92%
- Brand-name492 claims7%
- Other56 claims1%
Dr. Ishihara'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. Ishihara's Part D claims, 2024
- Opioids6%395 of 6,952 claims
- Antibiotics2%152 of 6,952 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: 6,5282024: 6,4481%
Drugs named by CMS: 116 in 2024, 107 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. Kristina K. Ishihara offers telehealth to Medicare patients
Dr. Ishihara accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ishihara as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Kristina K. Ishihara has 1 award and honors on record
Dmand AI lists 1 award for Dr. Ishihara, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Ishihara
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Kristina K. Ishihara graduated from Vanderbilt University School Of Medicine
Dr. Ishihara graduated from Vanderbilt University School Of Medicine in 1997.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Kristina K. Ishihara accepts plans from 2 insurance carriers
Dr. Ishihara 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. Ishihara accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Kristina K. Ishihara'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 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. Kristina K. Ishihara
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. Kristina K. Ishihara's NPI number?
Dr. Kristina K. Ishihara's NPI number is 1376621029. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Kristina K. Ishihara?
Dr. Kristina K. Ishihara is an internist in Stockton, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Kristina K. Ishihara practice?
Dr. Ishihara practices at 7373 West Ln, Stockton, CA 95210. Dr. Ishihara's primary practice is Permanente Medical Group Inc in Stockton, California. Dmand AI also links Dr. Ishihara to 1 group practice or clinic.
What is Dr. Kristina K. Ishihara's office phone number?
The practice phone on file for Dr. Ishihara is (209) 476-2000.
What is Dr. Kristina K. Ishihara's medical license number?
Dr. Ishihara holds California license A68165.
Which hospitals is Dr. Kristina K. Ishihara affiliated with?
Dr. Ishihara is affiliated with Kaiser Permanente South Sacramento Medical Center.
What medical group is Dr. Kristina K. Ishihara part of?
Dr. Ishihara is linked to The Permanente Medical Group, Inc.
Does Dr. Kristina K. Ishihara accept Medicare?
Yes. CMS data shows Dr. Ishihara billed Medicare for 11 services in 2019, and Dr. Ishihara accepts Medicare assignment.
Does Dr. Kristina K. Ishihara offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ishihara as offering telehealth services.
How many Medicare patients does Dr. Kristina K. Ishihara see?
CMS counts 25 Medicare patients who saw Dr. Ishihara in 2024, with an average age of 71.
Show 6 more questionsShow fewer questions
Is Dr. Kristina K. Ishihara board certified?
Yes. Dr. Ishihara is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Kristina K. Ishihara bill to Medicare?
In 2019, Dr. Ishihara's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. Kristina K. Ishihara go to medical school?
Dr. Ishihara graduated from Vanderbilt University School Of Medicine in 1997.
What drugs does Dr. Kristina K. Ishihara prescribe most?
In 2024 Medicare Part D data, Dr. Ishihara's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
How long has Dr. Kristina K. Ishihara been practicing?
Dr. Ishihara graduated from medical school in 1997, 29 years ago.
What insurance does Dr. Kristina K. Ishihara accept?
Dr. Ishihara 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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