NPPES file of Aug 9, 2026

Michael Karsten Dengel, M.D.

Neurology Physician · Carmichael, CA

Michael Karsten Dengel, M.D. is a neurology physician with a practice address in Carmichael, California, and NPI 1447391412, issued on Feb 10, 2007. Check the license (California A99864, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1447391412
Name
Michael Karsten Dengel
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
A99864 CA
Self-reported in NPPES; status is on the state search
Practice location
6555 Coyle Ave Ste 390, Carmichael, CA 95608
Phone
(916) 536-3670
Enumerated
Feb 10, 2007
Record last updated
Mar 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(916) 536-2480
Medicare enrollment
Enrolled (PECOS I20081030000504); accepts Medicare assignment
Medical or professional school
Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2002
Telehealth
Offers telehealth (CMS)
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 6555 Coyle Ave Ste 390

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

  1. Michael MassaroGastroenterology Physician1558741447
  2. Amanpal Singh, MDGastroenterology Physician1184829749
  3. Tatyana Yatskiv, PA-CPhysician Assistant1881451805

Verify Michael Karsten Dengel in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99864
    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.

16% fewer Medicare Part D claims than the average neurology physician in 2024

1,149 Medicare Part D claims for 185 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Michael Dengel1,149
  2. Specialty average1,370

Most prescribed

  1. Memantine Hcl198 claims
  2. Gabapentin132 claims
  3. Pregabalin100 claims
  4. Duloxetine Hcl77 claims
  5. Oxcarbazepine73 claims
  6. Donepezil Hcl63 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 MIPS final score for 2023 (Medicare payment program): 96.5 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.

  1. Qualityout of 100 · 30% of the final score80.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Dignity Health Medical FoundationCarmichael, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Karsten Dengel among 2,339 neurology physician records in California

Michael Karsten Dengel, M.D. is one of 2,339 neurology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 48% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2002 · median 2006 among the 1,628 with a school on file
  • Record last updated2020 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in California

There are 2,339 neurology physician records in California.

The 8 neurology physician records with the nearest ZIP codes

  1. Joey Roque Boiser, MDCarmichael, CA 956081770683831
  2. Asish Ghoshal, M.D.Carmichael, CA 956081700087145
  3. Ehsan Hadi, MDCarmichael, CA 956081770684326
  4. Natalie Ladna, MDCarmichael, CA 956081003349168
  5. Sabeen Lulu, M.DCarmichael, CA 956081104081298
  6. John Schafer, M.D.Carmichael, CA 956081902985393
  7. Peter Skaff, M.D.Carmichael, CA 956081467531855
  8. Andrew Oh, M.D.Citrus Heights, CA 956101508884859

Common questions

What is Michael Karsten Dengel, M.D.'s NPI number?

Michael Karsten Dengel, M.D.'s National Provider Identifier (NPI) is 1447391412, issued on Feb 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Michael Karsten Dengel, M.D. located?

The NPPES record lists a practice address at 6555 Coyle Ave Ste 390, Carmichael, CA, 95608. Phone: (916) 536-3670. Providers update this record themselves, so call before visiting.

How can I verify Michael Karsten Dengel, M.D.'s license?

NPPES lists California license number A99864, 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 Karsten Dengel, M.D. prescribe under Medicare Part D?

In 2024, Michael Karsten Dengel, M.D. had 1,149 Medicare Part D claims for 185 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Michael Karsten Dengel, M.D.'s MIPS final score?

The 2023 MIPS final score is 96.5 of 100. 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.