1. Home
  2. Directory
  3. Pennsylvania
  4. Philadelphia
  5. Psychiatry Neurology
  6. NPI Profile

DR. ALEXANDER SINGH GREWAL M.D.
NPI 1790127215
Psychiatry & Neurology - Psychiatry in Philadelphia, PA

Active since July 25, 2013PECOS Enrolled
BROAD & VINE ST., HAHNEMANN UNIVERISTY HOSPITAL, PHILADELPHIA, PA 19102(215) 831-4041 Get Directions Write a Review

NPPES record last updated: December 16, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Alexander Singh Grewal M.d. NPPES

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

DR. ALEXANDER SINGH GREWAL M.D. (NPI 1790127215) is an individual psychiatry provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MT205286) and active in the NPI registry since July 2013. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790127215
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. ALEXANDER SINGH GREWALCredential: M.D.
Location AddressBROAD & VINE ST., HAHNEMANN UNIVERISTY HOSPITALPhiladelphia, PA 19102
Mailing AddressBroad & Vine St., Hahnemann Univeristy HospitalPhiladelphia, PA 19102 · (215) 831-4041
Phone(215) 831-4041
Sole ProprietorNo
Enumeration DateJuly 25, 2013
Last NPPES UpdateDecember 16, 2016
✔ NPI 1790127215 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in PA · MT205286✔ Licensed in PA · MD458834
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
BROAD & VINE ST., Philadelphia, PA 19102
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alexander Singh Grewal M.d. 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.

Medicare Billing Reassignment

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

Wyckoff Professional Medical Services, PC
84 mi
Internal Medicine
374 STOCKHOLM ST
Brooklyn, NY 11237
  • Reassigned Medicare billing, New York enrollment
  • 427 clinicians in this Medicare group
NPI 1659710796 (718) 963-6485

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19102 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
$180.99 typical visit price
range $59.88 – $180.99
Typical copayment $45.24 (range $14.97 – $45.24)
Most-billed visit code 99205
Established Patient
$74.47 typical visit price
range $19.30 – $147.29
Typical copayment $18.61 (range $4.82 – $36.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Alexander Grewal's NPI number?

The NPI number for Alexander Grewal is 1790127215. It was assigned to this individual provider in the NPPES registry on July 25, 2013.

Where is Alexander Grewal located?

Alexander Grewal practices at Broad & Vine St. Hahnemann Univeristy Hospital, Philadelphia, PA 19102. The listed phone number is (215) 831-4041.

What is Alexander Grewal's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Alexander Grewal enrolled in Medicare?

Yes. Alexander Grewal is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alexander Grewal's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Grewal reassigns Medicare benefits to Wyckoff Professional Medical Services, PC (Brooklyn, NY). 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 Alexander Grewal'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 Alexander Grewal was last updated on December 16, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.