NPPES file of Aug 9, 2026

Elizabeth R. Maslow, M.D.

Infectious Disease Physician · Shadow Hills, CA

Elizabeth R. Maslow, M.D. is an infectious disease physician with a practice address in Shadow Hills, California, and NPI 1235194556, issued on Apr 19, 2006. Check the license (California G75445, 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
1235194556
Name
Elizabeth R. Maslow
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
G75445 CA
Self-reported in NPPES; status is on the state search
Practice location
10466 Pearson PL, Shadow Hills, CA 91040
Phone
(818) 653-1137
Enumerated
Apr 19, 2006
Record last updated
Mar 30, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(818) 951-3463
Medicare enrollment
Enrolled (PECOS I20100820000880); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 1991
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 Elizabeth R. Maslow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G75445
    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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32% fewer Medicare Part D claims than the average infectious disease physician in 2024

466 Medicare Part D claims for 129 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Elizabeth Maslow466
  2. Specialty average689

Most prescribed

  1. Daptomycin48 claims
  2. Ampicillin-Sulbactam42 claims
  3. Cefepime Hcl32 claims
  4. Ceftriaxone29 claims
  5. Levofloxacin27 claims
  6. Fluconazole26 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): 78.4 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 score100.0
  2. Costout of 100 · 30%94.7
  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).

Industry payments in 2024: $89.59

4 payments; by number, the most common kind was food and beverage; the largest payer was Paratek Pharmaceuticals, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Elizabeth Maslow$89.59
  2. Specialty average$4,362.19

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

Elizabeth R. Maslow among 1,119 infectious disease physician records in California

Elizabeth R. Maslow, M.D. is one of 1,119 infectious disease physician records with a practice address in California. 79% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 54% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1991 · median 2003 among the 735 with a school on file
  • Record last updated2016 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Mitchell Kushner, M.D.Monrovia, CA 910161437376258
  2. Mary Ann Leal, M.D.La Canada, CA 910111245249424
  3. Jeffrey Bender, MDDuarte, CA 910101114196508
  4. Sanjeet Dadwal, MDDuarte, CA 910101669589537
  5. Jana Dickter, MDDuarte, CA 910101649339201
  6. Caroline Ho, DODuarte, CA 910101093219768
  7. Avneet Kaur, M.D.Duarte, CA 910101326401043
  8. Deepa NanayakkaraDuarte, CA 910101629337076

Common questions

What is Elizabeth R. Maslow, M.D.'s NPI number?

Elizabeth R. Maslow, M.D.'s National Provider Identifier (NPI) is 1235194556, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth R. Maslow, M.D. located?

The NPPES record lists a practice address at 10466 Pearson PL, Shadow Hills, CA, 91040. Phone: (818) 653-1137. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth R. Maslow, M.D.'s license?

NPPES lists California license number G75445, 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 Elizabeth R. Maslow, M.D. prescribe under Medicare Part D?

In 2024, Elizabeth R. Maslow, M.D. had 466 Medicare Part D claims for 129 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is Elizabeth R. Maslow, M.D.'s MIPS final score?

The 2023 MIPS final score is 78.4 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.