Toxicol Appl Pharmacol
Dr. Ivan Dedrick Gavin Hamilton, MD
- Medicare services, 2024
- 320
- Medicare patients, 2024
- 264
- Part D claims, 2021
- 14
- Publications
- 1
- MIPS score, 2024
- 82
- Practice address
- 300 Hospital Dr, Vallejo, CA 94589
- Practice phone
- Call (707) 554-5280
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hamilton'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. Ivan Dedrick Gavin Hamilton is an internist in Vallejo, California
Dr. Hamilton practices at Sutter Solano Medical Center in Vallejo, California, part of Sutter Health.
Dr. Hamilton's NPI, 1669421202, was assigned on May 10, 2006. Dr. Hamilton graduated from Georgetown University School Of Medicine in 2002. Dr. Hamilton's California license number on file is A104632.
- NPI
- 1669421202NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052344934
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 554-5280
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- 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. Ivan Dedrick Gavin Hamilton practices at Sutter Solano Medical Center in Vallejo, California
Dr. Hamilton's primary practice is Sutter Solano Medical Center, at 300 Hospital Dr, Vallejo, CA 94589 in Solano County. The practice phone is (707) 554-5280.
- Sutter Solano Medical Center300 Hospital Dr, Vallejo, CA 94589 · Solano CountyPhone(707) 554-5280
Source: Dmand AI Affiliation Data
Dr. Ivan Dedrick Gavin Hamilton is affiliated with 5 sites of care and 3 medical groups
Dr. Hamilton's primary practice is Sutter Solano Medical Center in Vallejo, California, part of Sutter Health. The medical group on file is La Clinica De La Raza. Dmand AI also links Dr. Hamilton to 2 more home health agencies, 2 medical groups, 1 community health center and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ivan Dedrick Gavin Hamilton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hamilton practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Solano Medical Center | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Ivan Dedrick Gavin Hamilton is one of 16,751 internists in California
Internal medicine is Dr. Hamilton's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hamilton is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Hamilton's licenses on file in 2 states: California and Maryland.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Maryland license
Internists near Dr. Hamilton
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. Ivan Dedrick Gavin Hamilton billed Medicare for 320 services in 2024
CMS data shows 320 Medicare services from Dr. Hamilton across 3 procedure codes in 2024, for 264 Medicare patients. Medicare paid $41,162 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hamilton's Medicare services by type, 2017 to 2024
- 2017
- 2024
- Office and hospital visits
- 2017: 402024: 320700%
Dr. Hamilton compared with the California median for internists, 2024
- Dr. Hamilton
- California median
- Medicare services
- 320vs 36111% below
- Medicare patients
- 264vs 15175% above
- Part D claims
- 14vs 42197% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Hamilton'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hamilton and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ivan Dedrick Gavin Hamilton treated 264 Medicare patients in 2024, average age 75
CMS counts 264 Medicare patients who saw Dr. Hamilton in 2024. The largest group is 65 to 74, with 90 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 38% are also on Medicaid. Their average risk score is 2.30, 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. Hamilton's median patient age at 61, with 59% women.
Dr. Hamilton's Medicare patients by age, 2024
Dr. Hamilton's Medicare patients by sex, 2024
- Women13852%
- Men12648%
Chronic conditions among Dr. Hamilton's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes49%
- Chronic kidney disease48%
- Arthritis45%
- Heart failure41%
- Ischemic heart disease41%
- Atrial fibrillation34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hamilton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ivan Dedrick Gavin Hamilton wrote 14 Medicare Part D claims in 2021
In 2021, Dr. Hamilton wrote 14 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $100 in total drug cost. In 2016, CMS named 255 claims across 15 drugs.
Dr. Hamilton'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, 2016 to 2021
- 2016
- 2021
- Claims for drugs CMS names
- 2016: 2552021: 1495%
Drugs named by CMS: 1 in 2021, 15 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Ivan Dedrick Gavin Hamilton scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Hamilton for performance year 2024, reported as part of a group. Dr. Hamilton accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Hamilton's MIPS scores, performance year 2024
- 82of 100Final score
- 65.6of 100Quality
- 40of 100Improvement Activities
- 71of 100Cost
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. Ivan Dedrick Gavin Hamilton has 1 publication on record
Dmand AI links 1 paper to Dr. Hamilton. Dr. Hamilton's most frequent co-author is Swaminathan Padmanabhan Iyer, MD.
Dr. Hamilton's most frequent co-authors
Recent publications by Dr. Hamilton
See who Dr. Hamilton researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hamilton works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ivan Dedrick Gavin Hamilton received $496 in industry payments from 2016 to 2025
CMS Open Payments shows 13 general payments to Dr. Hamilton from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $169.
General payments to Dr. Hamilton by program year, 2016 to 2025
Companies that paid Dr. Hamilton the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ivan Dedrick Gavin Hamilton graduated from Georgetown University School Of Medicine
Dr. Hamilton graduated from Georgetown University School Of Medicine in 2002. Dr. Hamilton is a member of SHM.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Ivan Dedrick Gavin Hamilton accepts plans from 9 insurance carriers
Dr. Hamilton is in network with 9 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
- +1 more carriersWith a free account
Plan types Dr. Hamilton accepts, by number of carriers
- PPO6
- Medicare5
- POS3
- HMO2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ivan Dedrick Gavin Hamilton'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) |
| 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)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. Ivan Dedrick Gavin Hamilton
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. Ivan Dedrick Gavin Hamilton's NPI number?
Dr. Ivan Dedrick Gavin Hamilton's NPI number is 1669421202. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ivan Dedrick Gavin Hamilton?
Dr. Ivan Dedrick Gavin Hamilton is an internist in Vallejo, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ivan Dedrick Gavin Hamilton practice?
Dr. Hamilton practices at 300 Hospital Dr, Vallejo, CA 94589. Dr. Hamilton's primary practice is Sutter Solano Medical Center in Vallejo, California, part of Sutter Health. Dmand AI also links Dr. Hamilton to 2 home health agencies, 2 medical groups, 1 community health center and 1 group practice or clinic.
What is Dr. Ivan Dedrick Gavin Hamilton's office phone number?
The practice phone on file for Dr. Hamilton is (707) 554-5280.
What is Dr. Ivan Dedrick Gavin Hamilton's medical license number?
Dr. Hamilton's California license number on file is A104632, one of the licenses on file in 2 states.
Which states has Dr. Ivan Dedrick Gavin Hamilton been licensed in?
Dmand AI has state licenses on file for Dr. Hamilton in California (2008 to 2025) and Maryland (2005 to 2008).
Which hospitals is Dr. Ivan Dedrick Gavin Hamilton affiliated with?
Dr. Hamilton practices at Sutter Solano Medical Center in Vallejo, California.
What medical group is Dr. Ivan Dedrick Gavin Hamilton part of?
Dr. Hamilton is linked to La Clinica De La Raza. Dmand AI links Dr. Hamilton to 2 more medical groups.
Does Dr. Ivan Dedrick Gavin Hamilton accept Medicare?
Yes. CMS data shows Dr. Hamilton billed Medicare for 320 services in 2024, and Dr. Hamilton accepts Medicare assignment.
What is Dr. Ivan Dedrick Gavin Hamilton's MIPS score?
Dr. Hamilton's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Ivan Dedrick Gavin Hamilton see?
CMS counts 264 Medicare patients who saw Dr. Hamilton in 2024, with an average age of 75.
Is Dr. Ivan Dedrick Gavin Hamilton board certified?
Yes. Dr. Hamilton is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Ivan Dedrick Gavin Hamilton bill to Medicare?
In 2024, Dr. Hamilton's most billed Medicare services were hospital inpatient care (99223), critical care (99291) and care management and other visits (99497).
Where did Dr. Ivan Dedrick Gavin Hamilton go to medical school?
Dr. Hamilton graduated from Georgetown University School Of Medicine in 2002.
What drugs does Dr. Ivan Dedrick Gavin Hamilton prescribe most?
In 2021 Medicare Part D data, Dr. Hamilton's most prescribed drugs by claims were Atorvastatin Calcium.
Has Dr. Ivan Dedrick Gavin Hamilton received payments from drug or device companies?
CMS Open Payments shows $496 in general payments to Dr. Hamilton from 11 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Ivan Dedrick Gavin Hamilton been practicing?
Dr. Hamilton graduated from medical school in 2002, 24 years ago.
Does Dr. Ivan Dedrick Gavin Hamilton do research?
Dmand AI links 1 publication to Dr. Hamilton.
Who does Dr. Ivan Dedrick Gavin Hamilton publish with?
Dr. Hamilton's most frequent co-authors are Swaminathan Padmanabhan Iyer, MD (1 shared paper).
What insurance does Dr. Ivan Dedrick Gavin Hamilton accept?
Dr. Hamilton is in network with 9 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Blue Cross Blue Shield of Massachusetts. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.
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