1. Home
  2. Directory
  3. California
  4. Palmdale
  5. Anesthesiology
  6. NPI Profile

ESTHER MASILAMONY
NPI 1801465638
Anesthesiology in Palmdale, CA

Active since June 24, 2021PECOS EnrolledAccepts Medicare Assignment
38600 MEDICAL CENTER DR, PALMDALE, CA 93551(661) 382-5000 Get Directions Write a Review

NPPES record last updated: July 29, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Esther Masilamony NPPES

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

ESTHER MASILAMONY (NPI 1801465638) is an individual anesthesiology provider in Palmdale, California, licensed in California (199329) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2021).

NPPES Registry Identity

NPI1801465638
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameESTHER MASILAMONY
Location Address38600 MEDICAL CENTER DRPalmdale, CA 93551-4483
Mailing Address18236 W Terra Verde PlSanta Clarita, CA 91387-1847 · (530) 768-6799
Phone(661) 382-5000
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 2021
Enumeration DateJune 24, 2021
Last NPPES UpdateJuly 29, 2025
NPPES CertifiedJuly 29, 2025
✔ NPI 1801465638 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · 199329
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedSurgeryTaxonomy 208600000X · License 4351048659 (MI)
38600 MEDICAL CENTER DR, Palmdale, CA 93551
Open in Google Maps ↗

Other Names 1

Former Name (1)Esther Ramley

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

Esther Masilamony 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 ID941604136
PECOS Enrollment IDI20250922003052
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 Esther Masilamony reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Palmdale Anesthesia, Inc
Same address
Anesthesiology
38600 MEDICAL CENTER DR
Palmdale, CA 93551
  • Reassigned Medicare billing, California enrollment
  • 22 clinicians in this Medicare group
NPI 1205698115 (661) 382-5000

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

Other Providers at the Same Location NPPES 20

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

ELIZABETH WASIL
Registered Nurse (Emergency)
38600 MEDICAL CENTER DR
PALMDALE, CA 93551
Los Angeles County (661) 382-6000
INPATIENT SERVICES OF CALIFORNIA INC
Internal Medicine
38600 MEDICAL CENTER DR
PALMDALE, CA 93551
Los Angeles County (661) 382-5000
MARIE MATHEWS EMT
Specialist/Technologist
38600 MEDICAL CENTER DR
PALMDALE, CA 93551
Los Angeles County (661) 382-6000
RAHEL ABREHET PARKER MD
Student in an Organized Health Care Education/Training Program
38600 MEDICAL CENTER DR
PALMDALE, CA 93551
Los Angeles County (661) 382-6353
ALEJANDRO NAVARRO
Student in an Organized Health Care Education/Training Program
38600 MEDICAL CENTER DR
PALMDALE, CA 93551
Los Angeles County (661) 382-6353
INPAMANI S. ARUL M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
38600 MEDICAL CENTER DR
PALMDALE, CA 93551
Los Angeles County (661) 382-5722
THINN THINN WAH MD
Internal Medicine
38600 MEDICAL CENTER DR
PALMDALE, CA 93551
Los Angeles County (661) 382-6140
LANCASTER HOSPITAL CORPORATION
Rehabilitation Unit
38600 MEDICAL CENTER DR
PALMDALE, CA 93551
Los Angeles County (661) 948-4781

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 Esther Masilamony's NPI number?

The NPI number for Esther Masilamony is 1801465638. It was assigned to this individual provider in the NPPES registry on June 24, 2021. The provider is also known as Esther Ramley.

Where is Esther Masilamony located?

Esther Masilamony practices at 38600 Medical Center Dr, Palmdale, CA 93551. The listed phone number is (661) 382-5000.

What is Esther Masilamony's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Esther Masilamony enrolled in Medicare?

Yes. Esther Masilamony 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 Esther Masilamony's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Esther Masilamony reassigns Medicare benefits to Palmdale Anesthesia, Inc (Palmdale, 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 Esther Masilamony'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 Esther Masilamony was last updated on July 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.