REALM HEALTHCARE INC
NPI 1609414853
Internal Medicine - Gastroenterology in Upland, CA

Q: What is Realm Healthcare Inc's NPI number?

The NPI number for Realm Healthcare Inc is 1609414853. It was assigned to this organization in the NPPES registry on December 18, 2019.

Q: What is Realm Healthcare Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since December 18, 2019

1330 SAN BERNARDINO RD STE L, UPLAND, CA 91786(909) 833-7556(909) 833-9226 Get Directions Write a Review

NPPES record last updated: September 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 17, 2025, Oct 7, 2022, Nov 9, 2020 and 4 more (7 updates tracked since 2019).

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About Realm Healthcare Inc NPPES

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

REALM HEALTHCARE INC (NPI 1609414853) is a healthcare organization registered as a gastroenterology in Upland, California and active in the NPI registry since December 2019. The organization maintains 2 additional practice locations and lists Nischita Merla, Physician, as its authorized official.

NPPES Registry Identity

NPI1609414853

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NameREALM HEALTHCARE INC

Location Address1330 SAN BERNARDINO RD STE LUpland, CA 91786-4980

Mailing Address1330 San Bernardino Rd Ste LUpland, CA 91786-4980 · (909) 833-7556 · Fax (909) 833-9226

Phone(909) 833-7556

Fax(909) 833-9226

Organization SubpartNo

Authorized OfficialNischita MerlaPhysician · (909) 833-7556

Enumeration DateDecember 18, 2019

Last NPPES UpdateSeptember 17, 20257 updates tracked since enumeration

NPPES CertifiedSeptember 17, 2025

✔ NPI 1609414853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X

Also ListedInternal Medicine · Clinical Cardiac ElectrophysiologyTaxonomy 207RC0001X

1330 SAN BERNARDINO RD STE L, Upland, CA 91786

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Secondary Practice Locations 2

Location 1999 San Bernardino RdUpland, CA 91786-4920 · Phone (909) 985-2811

Location 21798 N Garey AvePomona, CA 91767-2918 · Phone (909) 865-9500

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Realm Healthcare Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to Realm Healthcare Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Nischita Merla, MD, MPH

Gastroenterology

NPI 1629272208

1330 SAN BERNARDINO RD STE L
Upland, CA 91786

(909) 833-7556

✔ PECOS✔ Accepts MedicareSame address

Ramanna Merla, MD

Cardiovascular Disease (Cardiology)

NPI 1336343912

1866 N ORANGE GROVE AVE STE 201
Pomona, CA 91767

(909) 623-5866

✔ PECOS✔ Accepts Medicare6.9 mi

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

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 Realm Healthcare Inc's NPI number?

The NPI number for Realm Healthcare Inc is 1609414853. It was assigned to this organization in the NPPES registry on December 18, 2019.

Where is Realm Healthcare Inc located?

Realm Healthcare Inc is located at 1330 San Bernardino Rd Ste L, Upland, CA 91786. The listed phone number is (909) 833-7556.

What is Realm Healthcare Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Realm Healthcare Inc enrolled in Medicare?

Yes. Realm Healthcare Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Realm Healthcare Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Realm Healthcare Inc, in Cardiovascular Disease (Cardiology) and Gastroenterology. A 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 the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Realm Healthcare Inc was last updated on September 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.