Dr. Janet E. Gaston, MD
- Medicare services, 2021
- 707
- Part D claims, 2022
- 363
- MIPS score, 2024
- 90
- Industry payments
- $1,860
- Affiliated sites
- 1
- Practice address
- 1505 Saint Alphonsus Way, Alamo, CA 94507-1570
- Practice phone
- Call (925) 838-4633
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
John Muir Physician Network - Alamo
Multi-specialty group site · Alamo, California
Find Dr. Gaston'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. Janet E. Gaston is an internist in Alamo, California
Dr. Gaston practices at John Muir Physician Network - Alamo in Alamo, California.
Dr. Gaston's NPI, 1053351825, was assigned on June 8, 2006. Dr. Gaston graduated from Carver College of Medicine in 1975. Dr. Gaston's California license number on file is C38245.
- NPI
- 1053351825NPI Registry (opens in a new tab)
- NPI enumeration date
- June 8, 2006
- NPI status
- Active
- Practice phone
- (925) 838-4633
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Janet E. Gaston practices at John Muir Physician Network - Alamo in Alamo, California
Dr. Gaston's primary practice is John Muir Physician Network - Alamo, at 1505 Saint Alphonsus Way, Alamo, CA 94507-1570. The practice phone is (925) 838-4633.
- John Muir Physician Network - Alamo1505 Saint Alphonsus Way, Alamo, CA 94507-1570Phone(925) 838-4633
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Janet E. Gaston is affiliated with 1 site of care and 1 medical group
Dr. Gaston's primary practice is John Muir Physician Network - Alamo in Alamo, California. The medical group on file is John Muir Medical Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Janet E. Gaston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gaston practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John Muir Physician Network - Alamo | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Janet E. Gaston is one of 16,751 internists in California
Internal medicine is Dr. Gaston's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gaston is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Gaston's licenses on file in 3 states: California, Oregon and Iowa.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Oregon license
- Iowa license
Internists near Dr. Gaston
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. Janet E. Gaston billed Medicare for 707 services in 2021
CMS data shows 707 Medicare services from Dr. Gaston across 12 procedure codes in 2021. Medicare paid $43,102 for them. Every service was in an office.
Dr. Gaston's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 6762021: 40141%
- Other services
- 2020: 3072021: 24121%
- Tests and treatments
- 2020: 1872021: 6565%
Dr. Gaston compared with the California median for internists, 2021
- Dr. Gaston
- California median
- Medicare services
- 707vs 36196% above
- Part D claims
- 363vs 42114% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Gaston's most billed Medicare procedure codes, 2021
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. Gaston?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gaston and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Janet E. Gaston's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Gaston's median patient age at 78, with 76% women.
Dr. Gaston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women76%
- Men22%
Source: Dmand AI Patient Panel Data
Dr. Janet E. Gaston wrote 363 Medicare Part D claims in 2022
In 2022, Dr. Gaston wrote 363 Medicare Part D claims. They cover 15 drugs, with $5,019 in total drug cost. In 2021, CMS named 3,970 claims across 85 drugs.
Dr. Gaston's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 3,9702022: 36391%
Drugs named by CMS: 15 in 2022, 85 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Janet E. Gaston scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Gaston for performance year 2024, reported as part of a group.
Dr. Gaston's MIPS scores, performance year 2024
- 90of 100Final score
- 89.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Janet E. Gaston received $1,860 in industry payments from 2016 to 2020
CMS Open Payments shows 98 general payments to Dr. Gaston from 27 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $335.
General payments to Dr. Gaston by program year, 2016 to 2020
Companies that paid Dr. Gaston the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Janet E. Gaston graduated from Carver College of Medicine
Dr. Gaston graduated from Carver College of Medicine in 1975.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Janet E. Gaston accepts plans from 2 insurance carriers
Dr. Gaston is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and Molina. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Molina
Plan types Dr. Gaston accepts, by number of carriers
- HMO1
- Medicare1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Janet E. Gaston'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 | Clinician Public Reporting: Overall MIPS Performance (CMS) (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. Janet E. Gaston
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. Janet E. Gaston's NPI number?
Dr. Janet E. Gaston's NPI number is 1053351825. It was assigned on June 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Janet E. Gaston?
Dr. Janet E. Gaston is an internist in Alamo, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Janet E. Gaston practice?
Dr. Gaston practices at 1505 Saint Alphonsus Way, Alamo, CA 94507-1570. Dr. Gaston's primary practice is John Muir Physician Network - Alamo in Alamo, California.
What is Dr. Janet E. Gaston's office phone number?
The practice phone on file for Dr. Gaston is (925) 838-4633.
What is Dr. Janet E. Gaston's medical license number?
Dr. Gaston's California license number on file is C38245, one of the licenses on file in 3 states.
Which states has Dr. Janet E. Gaston been licensed in?
Dmand AI has state licenses on file for Dr. Gaston in California (1978 to 2025), Oregon (since 1978) and Iowa (1975 to 2009).
What medical group is Dr. Janet E. Gaston part of?
Dr. Gaston is linked to John Muir Medical Group.
Does Dr. Janet E. Gaston accept Medicare?
Yes. CMS data shows Dr. Gaston billed Medicare for 707 services in 2021.
What is Dr. Janet E. Gaston's MIPS score?
Dr. Gaston's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.
Is Dr. Janet E. Gaston board certified?
Yes. Dr. Gaston is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Janet E. Gaston bill to Medicare?
In 2021, Dr. Gaston's most billed Medicare services were medicare service (G0439), care management and other visits (99442) and care management and other visits (99443).
Where did Dr. Janet E. Gaston go to medical school?
Dr. Gaston graduated from Carver College of Medicine in 1975.
What drugs does Dr. Janet E. Gaston prescribe most?
In 2022 Medicare Part D data, Dr. Gaston's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Triamterene-Hydrochlorothiazid.
Has Dr. Janet E. Gaston received payments from drug or device companies?
CMS Open Payments shows $1,860 in general payments to Dr. Gaston from 27 companies from 2016 to 2020. The largest total came from Amgen Inc.
How long has Dr. Janet E. Gaston been practicing?
Dr. Gaston graduated from medical school in 1975, 51 years ago.
What insurance does Dr. Janet E. Gaston accept?
Dr. Gaston is in network with 2 carriers, including Blue Cross Blue Shield of Michigan and Molina. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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