SHARON GREWAL MD
NPI 1831719624
Internal Medicine in Northridge, CA

Q: What is Sharon Grewal's NPI number?

The NPI number for Sharon Grewal is 1831719624. It was assigned to this individual provider in the NPPES registry on April 21, 2020.

Q: What is Sharon Grewal's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Sharon Grewal was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since April 21, 2020PECOS EnrolledAccepts Medicare Assignment

18546 ROSCOE BLVD STE 300, NORTHRIDGE, CA 91324(818) 886-4028 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 21, 2026, Dec 16, 2025, Jun 4, 2025 and 1 more (4 updates tracked since 2020).

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About Sharon Grewal Md NPPES

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

SHARON GREWAL MD (NPI 1831719624) is an individual internal medicine provider in Northridge, California, licensed in California (A197172) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1831719624

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameSHARON GREWALCredential: MD

Location Address18546 ROSCOE BLVD STE 300Northridge, CA 91324-5458

Mailing AddressPo Box 35380Las Vegas, NV 89133-5380 · (702) 579-3203

Phone(818) 886-4028

Sole ProprietorNo

Medical School CMSOtherGraduated 2015

Enumeration DateApril 21, 2020

Last NPPES UpdateFebruary 9, 20264 updates tracked since enumeration

NPPES CertifiedFebruary 9, 2026

✔ NPI 1831719624 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in CA · A197172✔ Licensed in OR · MD218612

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

18546 ROSCOE BLVD STE 300, Northridge, CA 91324

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans.Insurance ›

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

Sharon Grewal Md 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 ID1254720808

PECOS Enrollment IDI20250328002563

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 Reassignments

Medicare enrollment records show Sharon Grewal reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Healthcare Partners Affiliates Medical Group

19 mi

Internal Medicine

1120 W WASHINGTON BLVD
Los Angeles, CA 90015

Reassigned Medicare billing, California enrollment
2,052 clinicians in this Medicare group

NPI 1659312593 (213) 623-2225

Sky Lakes Medical Center Inc

581 mi

General Acute Care Hospital

2865 DAGGETT AVE
Klamath Falls, OR 97601

Reassigned Medicare billing, Oregon enrollment
355 clinicians in this Medicare group

NPI 1659340370 (541) 274-6221

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

157 services102 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

113 services93 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

48 services48 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

20 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91324 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.

Other Providers at the Same Location NPPES 6

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

SEAN XIANG CHEN MD

Family Medicine (Adult Medicine)