J Family Med Prim Care
Dr. Geoffrey Thomas Sasaki, MD
NPI1124212386PAC ID6305087024
- Medicare services, 2024
- 8,437
- Medicare patients, 2024
- 3,118
- Publications
- 4
- MIPS score, 2024
- 96
- Industry payments
- $853
- Practice address
- 183 E 8th Ave, Chico, CA 95926
- Practice phone
- Call (530) 891-6244
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pathology Sciences Medical Group
Clinical Lab - Full Service · Chico, California
Find Dr. Sasaki's professional email, personal email and mobile number
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Dr. Geoffrey Thomas Sasaki is a pathologist in Chico, California
Dr. Sasaki practices at Pathology Sciences Medical Group in Chico, California.
Dr. Sasaki's NPI, 1124212386, was assigned on August 30, 2007. Dr. Sasaki graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1999. Dr. Sasaki holds California license C55896.
NPI and contact details
- NPI
- 1124212386NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305087024
- NPI enumeration date
- August 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 891-6244
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Geoffrey Thomas Sasaki practices at Pathology Sciences Medical Group in Chico, California
Dr. Sasaki's primary practice is Pathology Sciences Medical Group, at 183 E 8th Ave, Chico, CA 95926. The practice phone is (530) 891-6244.
- Pathology Sciences Medical Group183 E 8th Ave, Chico, CA 95926Phone(530) 891-6244
Source: Dmand AI Affiliation Data
Dr. Geoffrey Thomas Sasaki is affiliated with 2 sites of care and 1 medical group
Dr. Sasaki's primary practice is Pathology Sciences Medical Group in Chico, California. The medical group on file is Pathology Sciences Medical Group. Dmand AI also links Dr. Sasaki to 1 more group practice or clinic, named with a free account. Dr. Sasaki's employer is on file too: a clinical lab.
Pathology Sciences Medical GroupPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Geoffrey Thomas Sasaki's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sasaki practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pathology Sciences Medical Group | 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. Geoffrey Thomas Sasaki is one of 1,354 pathologists in California
Anatomic pathology and clinical pathology is Dr. Sasaki's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Sasaki is board certified in dermatopathology by the American Board of Pathology. Dr. Sasaki is licensed in California.
Specialties and state licenses
- Anatomic pathology and clinical pathology, CaliforniaPrimary
Pathologists near Dr. Sasaki
Counts of pathologists 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. Geoffrey Thomas Sasaki billed Medicare for 8,437 services in 2024
CMS data shows 8,437 Medicare services from Dr. Sasaki across 16 procedure codes in 2024, for 3,118 Medicare patients. Medicare paid $523,109 for them. Every service was in an office.
Medicare services, 20248,437
Medicare patients3,118
Paid by Medicare$523,109
Procedure codes16
Dr. Sasaki's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 6,5852024: 8,42428%
- Other services
- 2023: 182024: 1328%
Dr. Sasaki compared with the California median for pathologists, 2024
- Dr. Sasaki
- California median
- Medicare services
- 8,437vs 1,1537.3 times
- Medicare patients
- 3,118vs 4477.0 times
Medians across 1,094 pathologists in California with Dmand AI profiles that report each measure.
Dr. Sasaki'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.
Need commercial claims for Dr. Sasaki?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sasaki and other pathologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Geoffrey Thomas Sasaki treated 3,118 Medicare patients in 2024, average age 76
CMS counts 3,118 Medicare patients who saw Dr. Sasaki in 2024. The largest group is 65 to 74, with 1,318 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sasaki's median patient age at 51, with 78% women.
Medicare patients, 20243,118
Average age76
Average risk score1.08
Also on Medicaid12%
Dr. Sasaki's Medicare patients by age, 2024
Dr. Sasaki's Medicare patients by sex, 2024
- Women1,46447%
- Men1,65453%
Chronic conditions among Dr. Sasaki's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis40%
- Diabetes25%
- Ischemic heart disease24%
- Chronic kidney disease22%
- Atrial fibrillation20%
- Anxiety17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sasaki's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women78%
- Men22%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Geoffrey Thomas Sasaki scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Sasaki for performance year 2024, reported as part of a group. Dr. Sasaki accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Sasaki's MIPS scores, performance year 2024
- 96of 100Final score
- 89.3of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Geoffrey Thomas Sasaki has 4 publications on record
Dmand AI links 4 papers to Dr. Sasaki, published from 2014 to 2022. 2020 was the busiest year, with 2. Dr. Sasaki's most frequent co-authors are Wendi Elaine Wohltmann, MD, Kara Hoverson, MD and Kevin Douglas Myers, MD.
Papers4
Years published2014 to 2022
Dr. Sasaki's papers by year, 2014 to 2022
Dr. Sasaki's most frequent co-authors
- Wendi Elaine Wohltmann, MD4 shared papers
- Kara Hoverson, MD1 shared paper
- Kevin Douglas Myers, MD1 shared paper
Recent publications by Dr. Sasaki
J Cutan Pathol
Facial NeoplasmsHamartomaRhabdomyoma
JAAD Case Rep
Dermatol Online J
BiopsyCondylomata AcuminataDermis
See who Dr. Sasaki researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sasaki works with, so you can find a warm path to the right pathologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Geoffrey Thomas Sasaki received $853 in industry payments from 2018 to 2025
CMS Open Payments shows 13 general payments to Dr. Sasaki from 7 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $269.
General payments to Dr. Sasaki by program year, 2018 to 2025
Companies that paid Dr. Sasaki the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Geoffrey Thomas Sasaki graduated from Uniformed Services University, F. Edward Hebert School of Medicine
Dr. Sasaki graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1999.
- Medical school
- Board certified in dermatopathology
- Board certified in pathology - anatomic/pathology - clinical
Source: Dmand AI Professional Profile Data
Dr. Geoffrey Thomas Sasaki accepts plans from 6 insurance carriers
Dr. Sasaki is in network with 6 carriers, including Excellus BlueCross BlueShield, United Healthcare and Aspirus Health Plan. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Excellus BlueCross BlueShield
- United Healthcare
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- Elevance
- HCSC
Plan types Dr. Sasaki accepts, by number of carriers
- PPO4
- POS3
- EPO2
- HMO2
- Medicare2
Source: Dmand AI Insurance Network Data
Sources for Dr. Geoffrey Thomas Sasaki'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. Geoffrey Thomas Sasaki
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. Geoffrey Thomas Sasaki's NPI number?
Dr. Geoffrey Thomas Sasaki's NPI number is 1124212386. It was assigned on August 30, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Geoffrey Thomas Sasaki?
Dr. Geoffrey Thomas Sasaki is a pathologist in Chico, California. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Geoffrey Thomas Sasaki practice?
Dr. Sasaki practices at 183 E 8th Ave, Chico, CA 95926. Dr. Sasaki's primary practice is Pathology Sciences Medical Group in Chico, California. Dmand AI also links Dr. Sasaki to 1 group practice or clinic.
What is Dr. Geoffrey Thomas Sasaki's office phone number?
The practice phone on file for Dr. Sasaki is (530) 891-6244.
What is Dr. Geoffrey Thomas Sasaki's medical license number?
Dr. Sasaki holds California license C55896.
What medical group is Dr. Geoffrey Thomas Sasaki part of?
Dr. Sasaki is linked to Pathology Sciences Medical Group.
Does Dr. Geoffrey Thomas Sasaki accept Medicare?
Yes. CMS data shows Dr. Sasaki billed Medicare for 8,437 services in 2024, and Dr. Sasaki accepts Medicare assignment.
What is Dr. Geoffrey Thomas Sasaki's MIPS score?
Dr. Sasaki's MIPS final score for performance year 2024 is 96 out of 100, reported as part of a group.
How many Medicare patients does Dr. Geoffrey Thomas Sasaki see?
CMS counts 3,118 Medicare patients who saw Dr. Sasaki in 2024, with an average age of 76.
Is Dr. Geoffrey Thomas Sasaki board certified?
Yes. Dr. Sasaki is board certified in dermatopathology by the American Board of Pathology.
Show 7 more questionsShow fewer questions
What services does Dr. Geoffrey Thomas Sasaki bill to Medicare?
In 2024, Dr. Sasaki's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88342) and lab and pathology test (88341).
Where did Dr. Geoffrey Thomas Sasaki go to medical school?
Dr. Sasaki graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1999.
Has Dr. Geoffrey Thomas Sasaki received payments from drug or device companies?
CMS Open Payments shows $853 in general payments to Dr. Sasaki from 7 companies from 2018 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Geoffrey Thomas Sasaki been practicing?
Dr. Sasaki graduated from medical school in 1999, 27 years ago.
Does Dr. Geoffrey Thomas Sasaki do research?
Dmand AI links 4 publications to Dr. Sasaki, published from 2014 to 2022.
Who does Dr. Geoffrey Thomas Sasaki publish with?
Dr. Sasaki's most frequent co-authors are Wendi Elaine Wohltmann, MD (4 shared papers), Kara Hoverson, MD (1 shared paper) and Kevin Douglas Myers, MD (1 shared paper).
What insurance does Dr. Geoffrey Thomas Sasaki accept?
Dr. Sasaki is in network with 6 carriers, including Excellus BlueCross BlueShield, United Healthcare and Aspirus Health Plan. PPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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