Dr. Isaac C. Chankai, MD
- Medicare services, 2019
- 76
- Part D claims, 2021
- 11
- Hospital affiliations
- 2
- Industry payments
- $1,550
- Medical groups
- 2
- Practice address
- 1555 Soquel Drive, Santa Cruz, CA 95065
- Practice phone
- Call (831) 462-7700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chankai'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. Isaac C. Chankai is a general surgeon in Santa Cruz, California
Dr. Chankai practices at Dignity Health - Dominican Hospital in Santa Cruz, California, part of CommonSpirit Health.
Dr. Chankai's NPI, 1922259720, was assigned on October 10, 2008. Dr. Chankai holds California license A123386.
- NPI
- 1922259720NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820235419
- NPI enumeration date
- October 10, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (831) 462-7700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Isaac C. Chankai practices at Dignity Health - Dominican Hospital in Santa Cruz, California
Dr. Chankai's primary practice is Dignity Health - Dominican Hospital, at 1555 Soquel Drive, Santa Cruz, CA 95065 in Santa Cruz County. The practice phone is (831) 462-7700.
- Dignity Health - Dominican Hospital1555 Soquel Drive, Santa Cruz, CA 95065 · Santa Cruz CountyPhone(831) 462-7700
Source: Dmand AI Affiliation Data
Dr. Isaac C. Chankai is affiliated with 3 sites of care and 2 medical groups
Dr. Chankai's primary practice is Dignity Health - Dominican Hospital in Santa Cruz, California, part of CommonSpirit Health. The medical group on file is San Francisco International Airport (SFO) Medical Clinic. Dmand AI also links Dr. Chankai to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account. Dr. Chankai's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Isaac C. Chankai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chankai practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Dominican Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Isaac C. Chankai is one of 2,926 general surgeons in California
Surgery is Dr. Chankai's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chankai is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Chankai
Counts of general surgeons 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. Isaac C. Chankai billed Medicare for 76 services in 2019
CMS data shows 76 Medicare services from Dr. Chankai across 4 procedure codes in 2019. Medicare paid $8,056 for them.
Dr. Chankai's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 2792019: 7673%
- Surgery
- 2018: 412019: 0100%
Where Dr. Chankai's Medicare services took place, 2019
- In an office6383%
- In a facility1317%
Dr. Chankai compared with the California median for general surgeons, 2019
- Dr. Chankai
- California median
- Medicare services
- 76vs 16654% below
- Part D claims
- 11vs 3468% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Chankai'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.
Need commercial claims for Dr. Chankai?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chankai and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Isaac C. Chankai's patients have a median age of 52
Across all payers, Dmand AI patient panel data puts Dr. Chankai's median patient age at 52, with 55% women.
Dr. Chankai's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women55%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. Isaac C. Chankai wrote 11 Medicare Part D claims in 2021
In 2021, Dr. Chankai wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $176 in total drug cost. In 2020, CMS named 11 claims across 1 drug.
Dr. Chankai's most prescribed drugs by claims, 2021
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, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 112021: 11No change
Drugs named by CMS: 1 in 2021, 1 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Isaac C. Chankai takes part in Medicare
Dr. Chankai accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Isaac C. Chankai received $1,550 in industry payments from 2019 to 2025
CMS Open Payments shows 3 general payments to Dr. Chankai from 2 drug and device companies from 2019 to 2025. Education make up the largest share, 97% of the total. Intuitive Surgical, Inc. paid the most, $1,516.
General payments to Dr. Chankai by program year, 2019 to 2025
General payments to Dr. Chankai by kind, 2019 to 2025
- Education$1,50097%
- Food and beverage$503%
Companies that paid Dr. Chankai the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Isaac C. Chankai'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Isaac C. Chankai
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. Isaac C. Chankai's NPI number?
Dr. Isaac C. Chankai's NPI number is 1922259720. It was assigned on October 10, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Isaac C. Chankai?
Dr. Isaac C. Chankai is a general surgeon in Santa Cruz, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Isaac C. Chankai practice?
Dr. Chankai practices at 1555 Soquel Drive, Santa Cruz, CA 95065. Dr. Chankai's primary practice is Dignity Health - Dominican Hospital in Santa Cruz, California, part of CommonSpirit Health. Dmand AI also links Dr. Chankai to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Isaac C. Chankai's office phone number?
The practice phone on file for Dr. Chankai is (831) 462-7700.
What is Dr. Isaac C. Chankai's medical license number?
Dr. Chankai holds California license A123386.
Which hospitals is Dr. Isaac C. Chankai affiliated with?
Dr. Chankai practices at Dignity Health - Dominican Hospital in Santa Cruz, California. Dmand AI links Dr. Chankai to 1 more hospital.
What medical group is Dr. Isaac C. Chankai part of?
Dr. Chankai is linked to San Francisco International Airport (SFO) Medical Clinic. Dmand AI links Dr. Chankai to 1 more medical group.
Does Dr. Isaac C. Chankai accept Medicare?
Yes. CMS data shows Dr. Chankai billed Medicare for 76 services in 2019, and Dr. Chankai accepts Medicare assignment.
What services does Dr. Isaac C. Chankai bill to Medicare?
In 2019, Dr. Chankai's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99213) and office visit, new patient (99204).
What drugs does Dr. Isaac C. Chankai prescribe most?
In 2021 Medicare Part D data, Dr. Chankai's most prescribed drugs by claims were Zolpidem Tartrate.
Has Dr. Isaac C. Chankai received payments from drug or device companies?
CMS Open Payments shows $1,550 in general payments to Dr. Chankai from 2 companies from 2019 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Isaac C. Chankai been practicing?
Dr. Chankai graduated from medical school in 2007, 19 years ago.
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