NPPES file of Aug 9, 2026

Ivette Stickelmaier, MD

Rheumatology Physician · Lakewood, CA

Ivette Stickelmaier, MD is a rheumatology physician with a practice address in Lakewood, California, and NPI 1962430579, issued on Jun 30, 2006. Check the license (California A50842, 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
1962430579
Name
Ivette Stickelmaier
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
A50842 CA
Self-reported in NPPES; status is on the state search
Practice location
5750 Downey Ave, Lakewood, CA 90712
Phone
(562) 630-3105
Enumerated
Jun 30, 2006
Record last updated
Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100308000018); accepts Medicare assignment
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.
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Also registered at 5750 Downey Ave

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

  1. Edgar Abbes, DPMPodiatrist1568526689
  2. Gary Baker, MDInterventional Pain Medicine Physician1437167863
  3. Michael Castro, MDDermatology Physician1437180320
  4. Cherie Garcia, MDInternal Medicine Physician1497786396
  5. Olga Ginzburg, MDInternal Medicine Physician1891723482
  6. Scott Gordon, MDInternal Medicine Physician1033140801

Verify Ivette Stickelmaier in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A50842
    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.

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34% fewer Medicare Part D claims than the average rheumatology physician in 2024

1,298 Medicare Part D claims for 449 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 86 claims were for opioids.

  1. Ivette Stickelmaier1,298
  2. Specialty average1,978

Most prescribed

  1. Methotrexate120 claims
  2. Prednisone107 claims
  3. Hydroxychloroquine Sulfate75 claims
  4. Tramadol Hcl54 claims
  5. Cephalexin48 claims
  6. Alendronate Sodium47 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.

Industry payments in 2024: $1,301.05

39 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ivette Stickelmaier$1,301.05
  2. Specialty average$8,538.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Prohealth Partners, A Medical GroupLakewood, CA
  2. Southern California Permanente Medical GroupHarbor City, CA

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

Ivette Stickelmaier among 926 rheumatology physician records in California

Ivette Stickelmaier, MD is one of 926 rheumatology 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1987 · median 2003 among the 641 with a school on file
  • Record last updated2021 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in California

There are 926 rheumatology physician records in California.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Rajinder Mahajan, MDHarbor City, CA 907101962550913
  2. Suchada Shu, MDHarbor City, CA 907101538236344
  3. Virginia Chan, MDBellflower, CA 907061891847273
  4. Gerald Levy, MDBellflower, CA 907061386715209
  5. Diane Tjornhom, MDBellflower, CA 907061649339235
  6. Rebekah Neal-Kraal, M.D.Los Alamitos, CA 907201215165667
  7. Dipti Doshi, MDCerritos, CA 907031053325761
  8. Linnea Smith, PA-CCerritos, CA 907031275464927

Common questions

What is Ivette Stickelmaier, MD's NPI number?

Ivette Stickelmaier, MD's National Provider Identifier (NPI) is 1962430579, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ivette Stickelmaier, MD located?

The NPPES record lists a practice address at 5750 Downey Ave, Lakewood, CA, 90712. Phone: (562) 630-3105. Providers update this record themselves, so call before visiting.

How can I verify Ivette Stickelmaier, MD's license?

NPPES lists California license number A50842, 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 Ivette Stickelmaier, MD prescribe under Medicare Part D?

In 2024, Ivette Stickelmaier, MD had 1,298 Medicare Part D claims for 449 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.