Philip Brien Dreisbach, M.D.
Hematology & Oncology Physician · Rancho Mirage, CA
Philip Brien Dreisbach, M.D. is a hematology & oncology physician with a practice address in Rancho Mirage, California, and NPI 1972513919, issued on Aug 9, 2006. Check the license (California G19293, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Philip Brien Dreisbach
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- G19293 CA
Self-reported in NPPES; status is on the state search - Practice location
- 34490 Bob Hope Dr., Rancho Mirage, CA 92270
- Phone
- (760) 568-3613
- Enumerated
- Aug 9, 2006
- Record last updated
- May 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (760) 340-5189
- Medicaid ID
- 00G192930 CA
- Medicare enrollment
- Enrolled (PECOS I20080611000463); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 34490 Bob Hope Dr.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Luke Dreisbach, M.D.Hematology & Oncology Physician1831109792
- Amy Law, M.D.Hematology & Oncology Physician1861452054
- Sheri Mitchell, FNPFamily Nurse Practitioner1326236340
- David Young, M.D.Hematology & Oncology Physician1427069350
Verify Philip Brien Dreisbach in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G19293Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
383 Medicare Part D claims for 99 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Anastrozole36 claims
- Imbruvica29 claims
- Prednisone17 claims
- Letrozole16 claims
- Allopurinol15 claims
- Gabapentin15 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 practice group's MIPS final score for 2023 (Medicare payment program): 85 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,420.61
154 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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.
Bills Medicare through one group practice
- Desert Hematology-Oncology Medical Group IncRancho Mirage, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Philip Brien Dreisbach among 1,583 hematology & oncology physician records in California
Philip Brien Dreisbach, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1965 · median 2003 among the 1,124 with a school on file
- Record last updated2020 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 hematology & oncology physician records list a practice address in Rancho Mirage
They are 19 of the 1,600 NPPES records with a practice address in Rancho Mirage, and 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Rancho Mirage → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Mark Carmichael, MDRancho Mirage, CA 922701811973043
- Jian Chen, MDRancho Mirage, CA 922701801956099
- Constantin Dasanu, M.D., PH.D.Rancho Mirage, CA 922701922120708
- Tyler Davis, M.D.Rancho Mirage, CA 922701679734891
- Luke Dreisbach, M.D.Rancho Mirage, CA 922701831109792
- Ira Felman, M.D.Rancho Mirage, CA 922701902913809
- Amy Law, M.D.Rancho Mirage, CA 922701861452054
- Maria Popescu, MDRancho Mirage, CA 922701750342499
Common questions
What is Philip Brien Dreisbach, M.D.'s NPI number?
Philip Brien Dreisbach, M.D.'s National Provider Identifier (NPI) is 1972513919, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Philip Brien Dreisbach, M.D. located?
The NPPES record lists a practice address at 34490 Bob Hope Dr., Rancho Mirage, CA, 92270. Phone: (760) 568-3613. Providers update this record themselves, so call before visiting.
How can I verify Philip Brien Dreisbach, M.D.'s license?
NPPES lists California license number G19293, 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 Philip Brien Dreisbach, M.D. prescribe under Medicare Part D?
In 2024, Philip Brien Dreisbach, M.D. had 383 Medicare Part D claims for 99 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Philip Brien Dreisbach, M.D.'s MIPS final score?
The 2023 MIPS final score is 85 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.