NPPES file of Aug 9, 2026

Alexander Doru Stein, MD

Dermatology Physician · Chula Vista, CA

Alexander Doru Stein, MD is a dermatology physician with a practice address in Chula Vista, California, and NPI 1760431654, issued on May 8, 2006. Check the license (California A106295, 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
1760431654
Name
Alexander Doru Stein
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License numbers
A106295 CA
MD036056 DC
Self-reported in NPPES; status is on the state search
Practice location
340 Fourth Ave Ste 14, Chula Vista, CA 91910
Phone
(718) 753-6536
Enumerated
May 8, 2006
Record last updated
Feb 17, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(619) 258-0028
Medicare enrollment
Enrolled (PECOS I20121105000190); 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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Verify Alexander Doru Stein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A106295
    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

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6% fewer Medicare Part D claims than the average dermatology physician in 2024

748 Medicare Part D claims for 286 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Alexander Stein748
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide295 claims
  2. Ketoconazole162 claims
  3. Doxycycline Hyclate71 claims
  4. Fluocinonide43 claims
  5. Hydrocortisone37 claims
  6. Clindamycin Phosphate30 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): 0 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 score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Alexander Doru Stein among 2,083 dermatology physician records in California

Alexander Doru Stein, MD is one of 2,083 dermatology 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 56% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1994 · median 2006 among the 1,450 with a school on file
  • Record last updated2021 · 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 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in California

There are 2,083 dermatology physician records in California.

The 8 dermatology physician records with the nearest ZIP codes

  1. Amy Han, MDChula Vista, CA 919101710945365
  2. Jacqueline McKeseyChula Vista, CA 919101811422801
  3. Jennifer Rullan, MDChula Vista, CA 919101447484811
  4. Mark Willoughby, M.D.Chula Vista, CA 919101215931993
  5. Hanny Chan, MDChula Vista, CA 919131669520524
  6. Amir Djavid, MDChula Vista, CA 919131023758091
  7. Nancy Maly, M.D.Chula Vista, CA 919131073874178
  8. Maria Parente, M.D.Chula Vista, CA 919131740293778

Common questions

What is Alexander Doru Stein, MD's NPI number?

Alexander Doru Stein, MD's National Provider Identifier (NPI) is 1760431654, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Doru Stein, MD located?

The NPPES record lists a practice address at 340 Fourth Ave Ste 14, Chula Vista, CA, 91910. Phone: (718) 753-6536. Providers update this record themselves, so call before visiting.

How can I verify Alexander Doru Stein, MD's license?

NPPES lists California license number A106295, 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 Alexander Doru Stein, MD prescribe under Medicare Part D?

In 2024, Alexander Doru Stein, MD had 748 Medicare Part D claims for 286 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Alexander Doru Stein, MD's MIPS final score?

The 2023 MIPS final score is 0 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.