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DR. ELIZABETH R MASLOW M.D.
NPI 1235194556
Internal Medicine - Infectious Disease in Shadow Hills, CA

Active since April 19, 2006PECOS EnrolledAccepts Medicare Assignment
78.4/100
CMS Quality Rating
10466 PEARSON PL, SHADOW HILLS, CA 91040(818) 653-1137(818) 951-3463 Get Directions Write a Review

NPPES record last updated: March 30, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 30, 2016, Mar 21, 2016 (2 updates tracked since 2016).

About Dr. Elizabeth R Maslow M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ELIZABETH R MASLOW M.D. (NPI 1235194556) is an individual infectious disease provider in Shadow Hills, California, licensed in California (G75445) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1991).

NPPES Registry Identity

NPI1235194556
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameDR. ELIZABETH R MASLOWCredential: M.D.
Location Address10466 PEARSON PLShadow Hills, CA 91040-1625
Mailing Address10466 Pearson PlShadow Hills, CA 91040-1625 · (818) 653-1137 · Fax (818) 951-3463
Phone(818) 653-1137
Fax(818) 951-3463
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1991
Enumeration DateApril 19, 2006
Last NPPES UpdateMarch 30, 20162 updates tracked since enumeration
✔ NPI 1235194556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CA · G75445
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
10466 PEARSON PL, Shadow Hills, CA 91040
Open in Google Maps ↗

Other Identifiers 1

Medicare UPING274940CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Elizabeth R Maslow M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID244364545
PECOS Enrollment IDI20100820000880
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Elizabeth Maslow reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Maslow Najera Inc.
Same address
Infectious Disease
10466 PEARSON PL
Shadow Hills, CA 91040
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1356702328 (818) 653-1137

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
2,830 services447 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
466 services381 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
64 services32 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91040 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

78.4/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality100
Improvement Activities0
Cost94.69

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MASLOW NAJERA INC.
Internal Medicine (Infectious Disease)
10466 PEARSON PL
SHADOW HILLS, CA 91040
Los Angeles County (818) 653-1137

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Elizabeth Maslow's NPI number?

The NPI number for Elizabeth Maslow is 1235194556. It was assigned to this individual provider in the NPPES registry on April 19, 2006.

Where is Elizabeth Maslow located?

Elizabeth Maslow practices at 10466 Pearson Pl, Shadow Hills, CA 91040. The listed phone number is (818) 653-1137.

What is Elizabeth Maslow's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Elizabeth Maslow enrolled in Medicare?

Yes. Elizabeth Maslow is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Elizabeth Maslow's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Maslow reassigns Medicare benefits to Maslow Najera Inc. (Shadow Hills, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Elizabeth Maslow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Elizabeth Maslow was last updated on March 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.