Mark Gregory Faber, DO
Hematology & Oncology Physician · Gilbert, AZ
Mark Gregory Faber, DO is a hematology & oncology physician with a practice address in Gilbert, Arizona, and NPI 1285167080, issued on Apr 7, 2017. Check the license (Arizona 010372, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Gregory Faber
- Credential
- DO
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 010372 AZ
296420 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2946 E Banner Gateway Dr, Gilbert, AZ 85234
- Phone
- (480) 256-6444
- Enumerated
- Apr 7, 2017
- Record last updated
- Mar 22, 2026
- Fax
- (480) 256-3359
- Medicare enrollment
- Enrolled (PECOS I20230817003045); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 285 in Arizona → Look up another NPI →
Also registered at 2946 E Banner Gateway Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie Anderson, PA-CSurgical Physician Assistant1154896058
- Ambuga Badari, MDHematology & Oncology Physician1851555874
- Nazia Baker, PA-CSurgical Physician Assistant1588249684
- Alexandria Barnes, PA-CMedical Physician Assistant1053782664
- Gale Barr, NP-CNurse Practitioner1912970153
- Bridget Beauchamp, PA-CPhysician Assistant1396581807
Verify Mark Gregory Faber in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 010372Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
312 Medicare Part D claims for 63 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Hydroxyurea58 claims
- Jakafi24 claims
- Valacyclovir22 claims
- Levofloxacin19 claims
- Posaconazole19 claims
- Ojjaara12 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): 81.5 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: $2,156.37
4 payments; by number, the most common kind was food and beverage; the largest payer was PharmaEssentia USA Corporation. 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
- Banner Cancer Center Specialists LLCGilbert, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Gregory Faber among 285 hematology & oncology physician records in Arizona
Mark Gregory Faber, DO is one of 285 hematology & oncology physician records with a practice address in Arizona. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 87% of them.
- NPI issued2017 · 87% of these records are older, 12% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2017 · median 2003 among the 229 with a school on file
- Record last updated2026 · 37% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Arizona
There are 285 hematology & oncology physician records in Arizona.
All 285 in Arizona → Every provider in Gilbert → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Ambuga Badari, MDGilbert, AZ 852341851555874
- Swapna Boppana, MDGilbert, AZ 852341285814509
- Hung Khong, MDGilbert, AZ 852341366586521
- Horst Uwe Klueppelberg, MD, PHDGilbert, AZ 852341356531859
- Margarita Kushnir, MDGilbert, AZ 852341437437373
- Michael Lee, MDGilbert, AZ 852341497933303
- Theresa Liu Dumlao, MDGilbert, AZ 852341043477441
- Sumit Madan, MDGilbert, AZ 852341972766756
Common questions
What is Mark Gregory Faber, DO's NPI number?
Mark Gregory Faber, DO's National Provider Identifier (NPI) is 1285167080, issued on Apr 7, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Mark Gregory Faber, DO located?
The NPPES record lists a practice address at 2946 E Banner Gateway Dr, Gilbert, AZ, 85234. Phone: (480) 256-6444. Providers update this record themselves, so call before visiting.
How can I verify Mark Gregory Faber, DO's license?
NPPES lists Arizona license number 010372, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Gregory Faber, DO prescribe under Medicare Part D?
In 2024, Mark Gregory Faber, DO had 312 Medicare Part D claims for 63 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Mark Gregory Faber, DO's MIPS final score?
The 2023 MIPS final score is 81.5 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.