Dr. Garth Oliver, MD
- Medicare services, 2024
- 253
- Medicare patients, 2024
- 88
- Part D claims, 2024
- 1,399
- Hospital affiliations
- 1
- Industry payments
- $228
- Practice address
- 603 Savin Ave, West Haven, CT 06516
- Practice phone
- Call (203) 932-2400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Savin Medical Practice
West Haven, Connecticut
Find Dr. Oliver'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. Garth Oliver is an internist in West Haven, Connecticut
Dr. Oliver practices at Savin Medical Practice in West Haven, Connecticut.
Dr. Oliver's NPI, 1285673145, was assigned on June 6, 2006. Dr. Oliver graduated from Columbia University Vagelos College of Physicians and Surgeons in 1993. Dr. Oliver holds Connecticut license 035510.
- NPI
- 1285673145NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860306495
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 932-2400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Garth Oliver practices at Savin Medical Practice in West Haven, Connecticut
Dr. Oliver's primary practice is Savin Medical Practice, at 603 Savin Ave, West Haven, CT 06516 in South Central Ct County. The practice phone is (203) 932-2400.
- Savin Medical Practice603 Savin Ave, West Haven, CT 06516 · South Central Ct CountyPhone(203) 932-2400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Garth Oliver is affiliated with 4 sites of care and 1 medical group
Dr. Oliver's primary practice is Savin Medical Practice in West Haven, Connecticut. Dr. Oliver is also affiliated with Yale New Haven Hospital. Dmand AI also links Dr. Oliver to 1 more physician office, 1 group practice or clinic and 1 medical group, each 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. Garth Oliver's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oliver practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Savin Medical Practice | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Garth Oliver is one of 2,189 internists in Connecticut
Internal medicine is Dr. Oliver's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Oliver is licensed in Connecticut.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
Internists near Dr. Oliver
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. Garth Oliver billed Medicare for 253 services in 2024
CMS data shows 253 Medicare services from Dr. Oliver across 6 procedure codes in 2024, for 88 Medicare patients. Medicare paid $22,152 for them. Every service was in an office.
Dr. Oliver's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2622024: 19924%
- Tests and treatments
- 2023: 312024: 2035%
- Surgery
- 2023: 342024: 2041%
- Other services
- 2023: 292024: 1452%
Dr. Oliver compared with the Connecticut median for internists, 2024
- Dr. Oliver
- Connecticut median
- Medicare services
- 253vs 39035% below
- Medicare patients
- 88vs 17249% below
- Part D claims
- 1,095vs 3433.2 times
Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.
Dr. Oliver'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Garth Oliver treated 88 Medicare patients in 2024, average age 68
CMS counts 88 Medicare patients who saw Dr. Oliver in 2024. The largest group is 65 to 74, with 32 patients. 68% of them have high blood pressure, and 50% have high cholesterol. 56% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Oliver's median patient age at 54, with 52% women.
Dr. Oliver's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Oliver's Medicare patients by sex, 2024
- Women4956%
- Men3944%
Chronic conditions among Dr. Oliver's Medicare patients, 2024
- High blood pressure68%
- High cholesterol50%
- Arthritis44%
- Diabetes31%
- Anxiety26%
- Chronic kidney disease18%
- COPD15%
- Heart failure15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Oliver's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women52%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Garth Oliver wrote 1,399 Medicare Part D claims in 2024
In 2024, Dr. Oliver wrote 1,399 Medicare Part D claims for 168 patients. 91% of them were for generic drugs. CMS names the drug for 1,095 of them, across 40 drugs with 11 or more claims each, at $26,663 in total drug cost. In 2023, CMS named 1,047 claims across 41 drugs.
Dr. Oliver's Part D claims by kind of drug, 2024
- Generic1,278 claims91%
- Brand-name and other121 claims9%
Dr. Oliver'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. Oliver's Part D claims, 2024
- Opioids4%60 of 1,399 claims
- Antibiotics4%52 of 1,399 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: 1,0472024: 1,0955%
Drugs named by CMS: 40 in 2024, 41 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. Garth Oliver offers telehealth to Medicare patients
Dr. Oliver accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Oliver as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Garth Oliver received $228 in industry payments from 2017 to 2020
CMS Open Payments shows 6 general payments to Dr. Oliver from 5 drug and device companies from 2017 to 2020. Food and beverage make up the largest share, 100% of the total. Amarin Pharma Inc. paid the most, $75.
General payments to Dr. Oliver by program year, 2017 to 2020
Companies that paid Dr. Oliver the most, 2017 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Garth Oliver graduated from Columbia University Vagelos College of Physicians and Surgeons
Dr. Oliver graduated from Columbia University Vagelos College of Physicians and Surgeons in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Garth Oliver'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Garth Oliver
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. Garth Oliver's NPI number?
Dr. Garth Oliver's NPI number is 1285673145. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Garth Oliver?
Dr. Garth Oliver is an internist in West Haven, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Garth Oliver practice?
Dr. Oliver practices at 603 Savin Ave, West Haven, CT 06516. Dr. Oliver's primary practice is Savin Medical Practice in West Haven, Connecticut. Dmand AI also links Dr. Oliver to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Dr. Garth Oliver's office phone number?
The practice phone on file for Dr. Oliver is (203) 932-2400.
What is Dr. Garth Oliver's medical license number?
Dr. Oliver holds Connecticut license 035510.
Which hospitals is Dr. Garth Oliver affiliated with?
Dr. Oliver is affiliated with Yale New Haven Hospital.
Does Dr. Garth Oliver accept Medicare?
Yes. CMS data shows Dr. Oliver billed Medicare for 253 services in 2024, and Dr. Oliver accepts Medicare assignment.
Does Dr. Garth Oliver offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Oliver as offering telehealth services.
How many Medicare patients does Dr. Garth Oliver see?
CMS counts 88 Medicare patients who saw Dr. Oliver in 2024, with an average age of 68.
What services does Dr. Garth Oliver bill to Medicare?
In 2024, Dr. Oliver's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and surgery: heart and blood vessels (36415).
Show 4 more questionsShow fewer questions
Where did Dr. Garth Oliver go to medical school?
Dr. Oliver graduated from Columbia University Vagelos College of Physicians and Surgeons in 1993.
What drugs does Dr. Garth Oliver prescribe most?
In 2024 Medicare Part D data, Dr. Oliver's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Garth Oliver received payments from drug or device companies?
CMS Open Payments shows $228 in general payments to Dr. Oliver from 5 companies from 2017 to 2020. The largest total came from Amarin Pharma Inc.
How long has Dr. Garth Oliver been practicing?
Dr. Oliver graduated from medical school in 1993, 33 years ago.
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