MUHAMMAD HAMMAD SIDDIQI MD
NPI 1679151450
Internal Medicine - Nephrology in Rockville, MD

Q: What is Muhammad Siddiqi's NPI number?

The NPI number for Muhammad Siddiqi is 1679151450. It was assigned to this individual provider in the NPPES registry on March 31, 2021.

Q: What is Muhammad Siddiqi's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Muhammad Siddiqi was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 March 31, 2021PECOS EnrolledAccepts Medicare Assignment

1201 SEVEN LOCKS RD STE 200A, ROCKVILLE, MD 20854(301) 907-3939(301) 656-3943 Get Directions Write a Review

NPPES record last updated: July 20, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Jul 20, 2026, Mar 27, 2026, Jun 16, 2025 and 3 more (6 updates tracked since 2021).

On this page

About Muhammad Hammad Siddiqi Md NPPES

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

MUHAMMAD HAMMAD SIDDIQI MD (NPI 1679151450) is an individual nephrology provider in Rockville, Maryland, licensed in Maryland (D0106477) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Richmond, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1679151450

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameMUHAMMAD HAMMAD SIDDIQICredential: MD

Location Address1201 SEVEN LOCKS RD STE 200ARockville, MD 20854-2931

Mailing Address1201 Seven Locks Rd Ste 200Rockville, MD 20854-2960 · (301) 907-3939 · Fax (301) 656-3943

Phone(301) 907-3939

Fax(301) 656-3943

Sole ProprietorNo

Medical School CMSOtherGraduated 2011

Enumeration DateMarch 31, 2021

Last NPPES UpdateJuly 20, 20266 updates tracked since enumeration

NPPES CertifiedJuly 20, 2026

✔ NPI 1679151450 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

Licenses✔ Licensed in MD · D0106477✔ Licensed in VA · 0101281883

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedHospitalistTaxonomy 208M00000X · License 0101281883 (VA)

1201 SEVEN LOCKS RD STE 200A, Rockville, MD 20854

Open in Google Maps ↗

Secondary Practice Location 1

Location 11300 E Marshall StRichmond, VA 23298-5028 · Phone (804) 828-3144 · Fax (804) 628-7104

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Muhammad Hammad Siddiqi 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 ID7911435433

PECOS Enrollment IDI20260410003554

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 20854 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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.

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 Muhammad Siddiqi's NPI number?

The NPI number for Muhammad Siddiqi is 1679151450. It was assigned to this individual provider in the NPPES registry on March 31, 2021.

Where is Muhammad Siddiqi located?

Muhammad Siddiqi practices at 1201 Seven Locks Rd Ste 200A, Rockville, MD 20854. The listed phone number is (301) 907-3939.

What is Muhammad Siddiqi's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Muhammad Siddiqi enrolled in Medicare?

Yes. Muhammad Siddiqi 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.

When was this NPI record last updated?

The NPPES record for Muhammad Siddiqi was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.