Dr. Philip Brien Dreisbach, MD

  • Rancho Mirage, CA
  • Hematologist and oncologist
NPI1972513919PAC ID8527077858
Medicare services, 2024
127,785
Medicare patients, 2024
675
Part D claims, 2024
383
MIPS score, 2024
100
Hospital affiliations
2
Practice address
34490 Bob Hope Dr, Rancho Mirage, CA 92270
Practice phone
Call (760) 568-3613
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Desert Hematology-Oncology Medical Group Inc

Rancho Mirage, California

See all 5 affiliations

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Dr. Philip Brien Dreisbach is a hematologist and oncologist in Rancho Mirage, California

Dr. Dreisbach practices at Desert Hematology-Oncology Medical Group Inc in Rancho Mirage, California.

Dr. Dreisbach's NPI, 1972513919, was assigned on August 9, 2006. Dr. Dreisbach graduated from Rutgers New Jersey Medical School in 1969. Dr. Dreisbach's California license number on file is G19293.

NPI and contact details
Medicare PAC ID
8527077858
NPI enumeration date
August 9, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(760) 568-3613
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
87
Medical school graduation
1969

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Philip Brien Dreisbach practices at Desert Hematology-Oncology Medical Group Inc in Rancho Mirage, California

Dr. Dreisbach's primary practice is Desert Hematology-Oncology Medical Group Inc, at 34490 Bob Hope Dr, Rancho Mirage, CA 92270 in Riverside County. The practice phone is (760) 568-3613.

  • Desert Hematology-Oncology Medical Group Inc
    34490 Bob Hope Dr, Rancho Mirage, CA 92270 · Riverside CountyPhone(760) 568-3613

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Philip Brien Dreisbach is affiliated with 4 sites of care and 1 medical group

Dr. Dreisbach's primary practice is Desert Hematology-Oncology Medical Group Inc in Rancho Mirage, California. Dr. Dreisbach is also affiliated with Eisenhower Health. The medical group on file is Desert Hematology Oncology. Dmand AI also links Dr. Dreisbach to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Dreisbach

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Philip Brien Dreisbach's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dreisbach practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Desert Hematology-Oncology Medical Group IncAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Philip Brien Dreisbach is one of 1,502 hematologists and oncologists in California

Hematology and oncology is Dr. Dreisbach's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Dreisbach is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Dreisbach's licenses on file in 3 states: California, Pennsylvania and Louisiana.

Specialties and state licenses

  • Hematology and oncology, CaliforniaPrimaryLicense G19293 · 1970 to 2025 · taxonomy 207RH0003X
  • Pennsylvania license1976 to 1978
  • Louisiana license1973 to 1976

Clinical focus

Dmand AI lists breast cancer, chronic anemia, chronic embolism thrombosis, chronic leukemia, colorectal cancer, immune deficiency disease, lung cancer and lymphoma among the conditions Dr. Dreisbach treats.

Hematologists and oncologists near Dr. Dreisbach

Counts of hematologists and oncologists 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. Philip Brien Dreisbach billed Medicare for 127,785 services in 2024

CMS data shows 127,785 Medicare services from Dr. Dreisbach across 50 procedure codes in 2024, for 675 Medicare patients. Medicare paid $1,689,631 for them.

Medicare services, 2024127,785
Medicare patients675
Paid by Medicare$1.7M
Procedure codes50

Dr. Dreisbach's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 119,5252024: 119,857No change
Tests and treatments
2023: 2,3492024: 2,5288%
Lab and pathology
2023: 1,9912024: 2,41121%
Office and hospital visits
2023: 1,4552024: 1,5074%
Surgery
2023: 8592024: 9308%
Other services
2023: 5402024: 5047%
Imaging
2023: 772024: 4838%

Where Dr. Dreisbach's Medicare services took place, 2024

  • In an office127,731100%
  • In a facility540%

Dr. Dreisbach compared with the California median for hematologists and oncologists, 2024

  • Dr. Dreisbach
  • California median
Medicare services
127,785vs 932137.1 times
Medicare patients
675vs 2253.0 times
Part D claims
180vs 39454% below

Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.

Dr. Dreisbach'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.

See all procedures by Dr. Dreisbach

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Philip Brien Dreisbach treated 675 Medicare patients in 2024, average age 79

CMS counts 675 Medicare patients who saw Dr. Dreisbach in 2024. The largest group is 75 to 84, with 293 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.98, 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. Dreisbach's median patient age at 72, with 64% women.

Medicare patients, 2024675
Average age79
Average risk score1.98
Also on Medicaid12%

Dr. Dreisbach's Medicare patients by age, 2024

Dr. Dreisbach's Medicare patients by sex, 2024

  • Women42463%
  • Men25137%

Chronic conditions among Dr. Dreisbach's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis59%
  4. Osteoporosis49%
  5. Cancer39%
  6. Chronic kidney disease38%
  7. Ischemic heart disease38%
  8. Diabetes31%

Share of Medicare patients with each condition. A patient can have several.

Dr. Dreisbach's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women64%
  • Men35%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Philip Brien Dreisbach wrote 383 Medicare Part D claims in 2024

In 2024, Dr. Dreisbach wrote 383 Medicare Part D claims for 99 patients. 68% of them were for generic drugs. CMS names the drug for 180 of them, across 10 drugs with 11 or more claims each, at $857,764 in total drug cost. In 2023, CMS named 115 claims across 8 drugs.

Part D claims, 2024383
Drugs named by CMS10
Total drug cost$857,764
Part D patients99

Dr. Dreisbach's Part D claims by kind of drug, 2024

  • Generic261 claims68%
  • Brand-name122 claims32%

Dr. Dreisbach'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1152024: 18057%

Drugs named by CMS: 10 in 2024, 8 in 2023.

See all prescribing by Dr. Dreisbach

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. Philip Brien Dreisbach scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Dreisbach for performance year 2024, reported as part of a group. Dr. Dreisbach accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Dreisbach as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Dreisbach's MIPS scores, performance year 2024

  • 100of 100Final score
  • 100of 100Quality
  • 40of 100Improvement Activities

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. Philip Brien Dreisbach received $25,934 in industry payments from 2016 to 2025

CMS Open Payments shows 1,419 general payments to Dr. Dreisbach from 95 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Novartis Pharmaceuticals Corporation paid the most, $2,076.

General payments to Dr. Dreisbach by program year, 2016 to 2025

General payments to Dr. Dreisbach by kind, 2016 to 2025

$25.9Kin total
  • Food and beverage$25,41198%
  • Education$5232%

Companies that paid Dr. Dreisbach the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Dreisbach

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Philip Brien Dreisbach has 6 awards and honors on record

Dmand AI lists 6 awards for Dr. Dreisbach, most recently CMS Stage 1 EHR in 2014.

Awards and honors for Dr. Dreisbach

  1. 2014
    • CMS Stage 1 EHR
    • Palm Springs Life Magazine
  2. 2013
    • Top Doctors:LA Area
    • Top Doctors:San Diego Area
  3. 2012
    • Top Doctors:Southern California
  4. Undated
    • Checkbook Top Doc

Source: Dmand AI Professional Profile Data

Dr. Philip Brien Dreisbach graduated from Rutgers New Jersey Medical School

Dr. Dreisbach graduated from Rutgers New Jersey Medical School in 1969. Dr. Dreisbach is a member of ASCO.

  1. Medical schoolRutgers New Jersey Medical School
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in medical oncologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Philip Brien Dreisbach accepts plans from 11 insurance carriers

Dr. Dreisbach is in network with 11 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Aetna. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Aetna
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Molina
  • Regence Health Plans
  • Aspirus Health Plan
  • +3 more carriersWith a free account

Plan types Dr. Dreisbach accepts, by number of carriers

  1. Medicare8
  2. PPO6
  3. HMO4
  4. POS4
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Philip Brien Dreisbach's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Philip Brien Dreisbach

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. Philip Brien Dreisbach's NPI number?

Dr. Philip Brien Dreisbach's NPI number is 1972513919. It was assigned on August 9, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Philip Brien Dreisbach?

Dr. Philip Brien Dreisbach is a hematologist and oncologist in Rancho Mirage, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Philip Brien Dreisbach practice?

Dr. Dreisbach practices at 34490 Bob Hope Dr, Rancho Mirage, CA 92270. Dr. Dreisbach's primary practice is Desert Hematology-Oncology Medical Group Inc in Rancho Mirage, California. Dmand AI also links Dr. Dreisbach to 1 hospital and 1 group practice or clinic.

What is Dr. Philip Brien Dreisbach's office phone number?

The practice phone on file for Dr. Dreisbach is (760) 568-3613.

What is Dr. Philip Brien Dreisbach's medical license number?

Dr. Dreisbach's California license number on file is G19293, one of the licenses on file in 3 states.

Which states has Dr. Philip Brien Dreisbach been licensed in?

Dmand AI has state licenses on file for Dr. Dreisbach in California (1970 to 2025), Pennsylvania (1976 to 1978) and Louisiana (1973 to 1976).

Which hospitals is Dr. Philip Brien Dreisbach affiliated with?

Dr. Dreisbach is affiliated with Eisenhower Health. Dmand AI links Dr. Dreisbach to 1 more hospital.

What medical group is Dr. Philip Brien Dreisbach part of?

Dr. Dreisbach is linked to Desert Hematology Oncology.

Does Dr. Philip Brien Dreisbach accept Medicare?

Yes. CMS data shows Dr. Dreisbach billed Medicare for 127,785 services in 2024, and Dr. Dreisbach accepts Medicare assignment.

Does Dr. Philip Brien Dreisbach offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Dreisbach as offering telehealth services.

Show 9 more questionsShow fewer questions

What is Dr. Philip Brien Dreisbach's MIPS score?

Dr. Dreisbach's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.

How many Medicare patients does Dr. Philip Brien Dreisbach see?

CMS counts 675 Medicare patients who saw Dr. Dreisbach in 2024, with an average age of 79.

Is Dr. Philip Brien Dreisbach board certified?

Yes. Dr. Dreisbach is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Philip Brien Dreisbach bill to Medicare?

In 2024, Dr. Dreisbach's most billed Medicare services were injected or infused drug (J1439), injected or infused drug (J0897) and injected or infused drug (J9271).

Where did Dr. Philip Brien Dreisbach go to medical school?

Dr. Dreisbach graduated from Rutgers New Jersey Medical School in 1969.

What drugs does Dr. Philip Brien Dreisbach prescribe most?

In 2024 Medicare Part D data, Dr. Dreisbach's most prescribed drugs by claims were Anastrozole, Imbruvica and Prednisone.

Has Dr. Philip Brien Dreisbach received payments from drug or device companies?

CMS Open Payments shows $25,934 in general payments to Dr. Dreisbach from 95 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.

How long has Dr. Philip Brien Dreisbach been practicing?

Dr. Dreisbach graduated from medical school in 1969, 57 years ago.

What insurance does Dr. Philip Brien Dreisbach accept?

Dr. Dreisbach is in network with 11 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Aetna. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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