Dr. Ruth A. Holly, MD
- Part D claims, 2023
- 18
- Hospital affiliations
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 700 Lawrence Expressway, Santa Clara, CA 95051
- Practice phone
- Call (408) 236-6400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Holly'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. Ruth A. Holly is an internist in Santa Clara, California
Dr. Holly practices at Santa Clara Medical Center in Santa Clara, California, part of Kaiser Permanente.
Dr. Holly's NPI, 1902980980, was assigned on October 25, 2006. Dr. Holly graduated from Keck School of Medicine of USC in 1986. Dr. Holly's California license number on file is G63241.
- NPI
- 1902980980NPI Registry (opens in a new tab)
- NPI enumeration date
- October 25, 2006
- NPI status
- Active
- Practice phone
- (408) 236-6400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ruth A. Holly practices at Santa Clara Medical Center in Santa Clara, California
Dr. Holly's primary practice is Santa Clara Medical Center, at 700 Lawrence Expressway, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 236-6400.
- Santa Clara Medical Center700 Lawrence Expressway, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 236-6400
Source: Dmand AI Affiliation Data
Dr. Ruth A. Holly is affiliated with 2 sites of care and 1 medical group
Dr. Holly's primary practice is Santa Clara Medical Center in Santa Clara, California, part of Kaiser Permanente. Dr. Holly is also affiliated with San Rafael Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ruth A. Holly's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holly practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Clara Medical Center | 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. Ruth A. Holly is one of 16,751 internists in California
Internal medicine is Dr. Holly's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Holly is board certified in internal medicine by the American Board of Internal Medicine. Dr. Holly has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Holly
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. Ruth A. Holly's patients have a median age of 89
Across all payers, Dmand AI patient panel data puts Dr. Holly's median patient age at 89, with 67% women.
Dr. Holly's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 89
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Ruth A. Holly wrote 18 Medicare Part D claims in 2023
In 2023, Dr. Holly wrote 18 Medicare Part D claims. They cover 1 drug, with $928 in total drug cost. In 2022, CMS named 37 claims across 1 drug.
Dr. Holly's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 372023: 1851%
Drugs named by CMS: 1 in 2023, 1 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Ruth A. Holly has 1 award and honors on record
Dmand AI lists 1 award for Dr. Holly, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Holly
- 2011
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Ruth A. Holly graduated from Keck School of Medicine of USC
Dr. Holly graduated from Keck School of Medicine of USC in 1986.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Ruth A. Holly'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 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Ruth A. Holly
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. Ruth A. Holly's NPI number?
Dr. Ruth A. Holly's NPI number is 1902980980. It was assigned on October 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruth A. Holly?
Dr. Ruth A. Holly is an internist in Santa Clara, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ruth A. Holly practice?
Dr. Holly practices at 700 Lawrence Expressway, Santa Clara, CA 95051. Dr. Holly's primary practice is Santa Clara Medical Center in Santa Clara, California, part of Kaiser Permanente.
What is Dr. Ruth A. Holly's office phone number?
The practice phone on file for Dr. Holly is (408) 236-6400.
What is Dr. Ruth A. Holly's medical license number?
Dr. Holly's California license number on file is G63241.
Which hospitals is Dr. Ruth A. Holly affiliated with?
Dr. Holly practices at Santa Clara Medical Center in Santa Clara, California. Dr. Holly is also affiliated with San Rafael Medical Center.
What medical group is Dr. Ruth A. Holly part of?
Dr. Holly is linked to The Permanente Medical Group, Inc.
Is Dr. Ruth A. Holly board certified?
Yes. Dr. Holly is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Ruth A. Holly go to medical school?
Dr. Holly graduated from Keck School of Medicine of USC in 1986.
What drugs does Dr. Ruth A. Holly prescribe most?
In 2023 Medicare Part D data, Dr. Holly's most prescribed drugs by claims were Adacel Tdap.
How long has Dr. Ruth A. Holly been practicing?
Dr. Holly graduated from medical school in 1986, 40 years ago.
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