ASHLEY NIEVES GREGG MD
NPI 1144640152
Pediatrics in Calabasas, CA

Active since April 17, 2014PECOS Enrolled
86.1/100
CMS Quality Rating
26585 AGOURA RD STE 360, CALABASAS, CA 91302(818) 592-2320(818) 880-8014 Get Directions Write a Review

NPPES record last updated: March 2, 2020. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Mar 2, 2020, Dec 6, 2019, Sep 25, 2019 and 1 more (4 updates tracked since 2018).

About Ashley Nieves Gregg Md NPPES

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

ASHLEY NIEVES GREGG MD (NPI 1144640152) is an individual pediatrics provider in Calabasas, California, licensed in California (A162709) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and maintains a secondary practice location in Westlake Village.

NPPES Registry Identity

NPI1144640152
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameASHLEY NIEVES GREGGCredential: MD
Location Address26585 AGOURA RD STE 360Calabasas, CA 91302-1958
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631
Fax(818) 880-8014
Sole ProprietorNo
Enumeration DateApril 17, 2014
Last NPPES UpdateMarch 2, 20204 updates tracked since enumeration
NPPES CertifiedMarch 2, 2020
NPI 1144640152 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License Licensed in CA · A162709
Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

26585 AGOURA RD STE 360, Calabasas, CA 91302

Other Names 1

Former Name (1)Ashley Marie Nieves Md

Secondary Practice Location 1

Location 11250 La Venta Dr Ste 105Westlake Village, CA 91361-3758 · Phone (805) 557-7187 · Fax (805) 557-7197

Other Identifiers 2

OtherA162079CA · Ca State License
Other294167NY · Ny State License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Ashley Nieves Gregg Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91302 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
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.

86.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality82.93
Promoting Interoperability100
Improvement Activities40
Cost66.73

Other Providers at the Same Location NPPES 12

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

Pediatrics
26585 AGOURA RD STE 360
CALABASAS, CA 91302
Speech-Language Pathologist
26585 AGOURA RD STE 360
CALABASAS, CA 91302
Pediatrics
26585 AGOURA RD STE 360
CALABASAS, CA 91302
Speech-Language Pathologist
26585 AGOURA RD STE 360
CALABASAS, CA 91302
Psychiatry & Neurology (Psychiatry)
26585 AGOURA RD STE 360
CALABASAS, CA 91302
Pediatrics
26585 AGOURA RD STE 360
CALABASAS, CA 91302
Pediatrics
26585 AGOURA RD STE 360
CALABASAS, CA 91302
Pediatrics
26585 AGOURA RD STE 360
CALABASAS, CA 91302

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 Ashley Gregg's NPI number?

The NPI number for Ashley Gregg is 1144640152. It was assigned to this individual provider in the NPPES registry on April 17, 2014.

Where is Ashley Gregg located?

Ashley Gregg practices at 26585 Agoura Rd Ste 360, Calabasas, CA 91302. The listed phone number is (818) 592-2320.

What is Ashley Gregg's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Ashley Gregg enrolled in Medicare?

Yes. Ashley Gregg is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Ashley Gregg was last updated on March 2, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.