Ross Pirkle, M.D.
Internal Medicine Physician · Walnut Creek, CA
Ross Pirkle, M.D. is an internal medicine physician with a practice address in Walnut Creek, California, and NPI 1184656688, issued on Jul 7, 2006. Check the license (California A60017, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ross Pirkle
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A60017 CA
Self-reported in NPPES; status is on the state search - Practice location
- 112 LA Casa Via Ste 135, Walnut Creek, CA 94598
- Phone
- (925) 378-4040
- Enumerated
- Jul 7, 2006
- Entity
- Type 1 · individual
Verify Ross Pirkle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A60017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
55% more Medicare Part D claims than the average internal medicine physician in 2024
4,306 Medicare Part D claims for 288 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 92 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium277 claims
- Atorvastatin Calcium233 claims
- Levothyroxine Sodium158 claims
- Amlodipine Besylate131 claims
- Metoprolol Succinate125 claims
- Lisinopril117 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The Medicare quality score for 2023: 93.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,781.25
50 payments, mostly food and beverage; the largest payer was GlaxoSmithKline, LLC.. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Bass Medical GroupWalnut Creek, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
212 internal medicine physician records list a Walnut Creek practice address
They are 212 of the 6,170 NPPES records with a Walnut Creek practice address, and 20,403 internal medicine physician records in California.
All 212 in Walnut Creek → All 20,403 in California → Every provider in Walnut Creek →
Other internal medicine physician records in California
- Jacob Aaron, MDSan Francisco, CA1407202518
- Alistair Aaronson, MDStanford, CA1457628760
- Jose Abad., MDSacramento, CA1144607219
- Donna Abare, MDOakland, CA1386722155
- Marce AbareScotts Valley, CA1457744708
- Samuel Abarte, M.D.Chula Vista, CA1578535498
- Alexander Abary, MDLong Beach, CA1104995919
- Luba Abascal, MDSan Francisco, CA1023180874
- Michael Abate, MDSacramento, CA1548248131
- Wali Abawi, D.O.Joshua Tree, CA1104362268
Common questions
What is Ross Pirkle, M.D.'s NPI number?
Ross Pirkle, M.D.'s National Provider Identifier (NPI) is 1184656688, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ross Pirkle, M.D. located?
The NPPES record lists a practice address at 112 LA Casa Via Ste 135, Walnut Creek, CA, 94598. Phone: (925) 378-4040. Providers update this record themselves, so call before visiting.
How can I verify Ross Pirkle, M.D.'s license?
NPPES lists California license number A60017, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ross Pirkle, M.D. prescribe under Medicare Part D?
In 2024, Ross Pirkle, M.D. had 4,306 Medicare Part D claims for 288 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
What is Ross Pirkle, M.D.'s Medicare quality score?
The 2023 MIPS final score is 93.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.