NPPES file of Aug 9, 2026

Michael Patten Carroll, M.D.

Hematology & Oncology Physician · Sacramento, CA

Michael Patten Carroll, M.D. is a hematology & oncology physician with a practice address in Sacramento, California, and NPI 1699748707, issued on Feb 9, 2006. Check the license (California G88137, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1699748707
Name
Michael Patten Carroll
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
G88137 CA
32926 AZ
K0670 TX
Self-reported in NPPES; status is on the state search
Practice location
1020 29TH St, Sacramento, CA 95816
Phone
(916) 453-3313
Enumerated
Feb 9, 2006
Record last updated
Aug 17, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(916) 453-3313
Medicaid ID
246448 AZ
Medicare enrollment
Enrolled (PECOS I20080114000334); may accept Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 1984
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1020 29TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Michael Abate, MDInternal Medicine Physician1548248131
  2. Adel Agaiby, M.D.Internal Medicine Physician1841201688
  3. Imran Ally, M.DHospitalist Physician1760740161
  4. Ator Auwinger, M.D.Internal Medicine Physician1467582494
  5. Inderpal Biring, O.D.Internal Medicine Physician1063668648
  6. Zaida Botello, M.D.Hospitalist Physician1275876294

Verify Michael Patten Carroll in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G88137
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.5 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,173 Medicare Part D claims for 190 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 162 claims were for opioids.

  1. Michael Carroll2,173
  2. Specialty average877

Most prescribed

  1. Acyclovir219 claims
  2. Imbruvica160 claims
  3. Lenalidomide148 claims
  4. Dexamethasone94 claims
  5. Hydroxyurea83 claims
  6. Jakafi78 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.

Michael Patten Carroll among 1,583 hematology & oncology physician records in California

Michael Patten Carroll, 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
  • Graduated1984 · median 2003 among the 1,124 with a school on file
  • Record last updated2015 · 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).

Hematology & Oncology Physician providers in California

There are 1,583 hematology & oncology physician records in California.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Grigorios Chrysofakis, MDSacramento, CA 958161700159118
  2. Nabil Ghani, M.D.Sacramento, CA 958161407390172
  3. Brian Kim, M.D.Sacramento, CA 958161871532051
  4. Elias Kiwan, M.D.Sacramento, CA 958161790875276
  5. Jasdeepa Nagi, M.D.Sacramento, CA 958161407094188
  6. Bijay Nair, MDSacramento, CA 958161356560684
  7. Nitin Rohatgi, M.D.Sacramento, CA 958161235161621
  8. Mustaqeem Siddiqui, MBBSSacramento, CA 958161669480133

Common questions

What is Michael Patten Carroll, M.D.'s NPI number?

Michael Patten Carroll, M.D.'s National Provider Identifier (NPI) is 1699748707, issued on Feb 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Patten Carroll, M.D. located?

The NPPES record lists a practice address at 1020 29TH St, Sacramento, CA, 95816. Phone: (916) 453-3313. Providers update this record themselves, so call before visiting.

How can I verify Michael Patten Carroll, M.D.'s license?

NPPES lists California license number G88137, 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 Michael Patten Carroll, M.D. prescribe under Medicare Part D?

In 2024, Michael Patten Carroll, M.D. had 2,173 Medicare Part D claims for 190 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

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.