DR. ALI AHMED SIDDIQUI MD
NPI 1265478275
Internal Medicine - Gastroenterology in Fairfax, VA

Active since June 20, 2006PECOS EnrolledAccepts Medicare Assignment
8081 INNOVATION PARK DR STE 301, FAIRFAX, VA 22031(571) 472-6431(571) 665-6826 Get Directions Write a Review

NPPES record last updated: August 24, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 24, 2023, May 18, 2022, Apr 6, 2022 and 5 more (8 updates tracked since 2017).

About Dr. Ali Ahmed Siddiqui Md NPPES

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

DR. ALI AHMED SIDDIQUI MD (NPI 1265478275) is an individual gastroenterology provider in Fairfax, Virginia, licensed in Virginia (0101274422) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Maimonides Medical Center, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1265478275
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. ALI AHMED SIDDIQUICredential: MD
Location Address8081 INNOVATION PARK DR STE 301Fairfax, VA 22031-4867
Mailing AddressPo Box 37174Baltimore, MD 21297-3174 · (571) 423-5699 · Fax (571) 423-5698
Fax(571) 665-6826
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateJune 20, 2006
Last NPPES UpdateAugust 24, 20238 updates tracked since enumeration
NPPES CertifiedAugust 24, 2023
NPI 1265478275 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses Licensed in VA · 0101274422 Licensed in TX · 41307 Licensed in CA · C156639 Licensed in MA · 291092
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.
8081 INNOVATION PARK DR STE 301, Fairfax, VA 22031

Secondary Practice Locations 6

Location 1301 Memorial Medical PkwyDaytona Beach, FL 32117-5167 · Phone (386) 231-3072 · Fax (386) 231-5962
Location 221 Eastern AveWorcester, MA 01605-3094 · Phone (508) 856-8350 · Fax (508) 856-8437
Location 3119 Belmont StWorcester, MA 01605-2903 · Phone (508) 334-2846 · Fax (508) 856-3981
Location 455 Lake Ave NWorcester, MA 01655-0002 · Phone (508) 334-2846 · Fax (508) 856-3981
Location 52535 S Downing St, Suite 360Denver, CO 80210 · Phone (303) 260-2740 · Fax (303) 260-2741
Location 6824 N Military Hwy Ste 100Norfolk, VA 23502-3652 · Phone (757) 390-4551

Other Identifiers 1

Medicaid1024226000001PA

Accepted Insurance

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

Dr. Ali Ahmed Siddiqui 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 ID547261190
PECOS Enrollment IDI20250509001659
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.

Areas of Expertise CMS Part B claims 11

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.

Review by radiologist of image from tube placement into bile duct using an endoscope 74328
This procedure involves a specialist, called a radiologist, examining an image taken during a tube placement into your bile duct. The tube is inserted with the help of a tool called an endoscope. This allows the doctor to check for any issues or abnormalities in your bile duct.
38 services32 patients
Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 43264
This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.
35 services28 patients
Replacement of stent in pancreatic or bile duct using a flexible endoscope 43276
This procedure involves replacing an existing stent in your pancreatic or bile duct. A flexible endoscope, a tube-like device with a light and camera, is used to view and access the area. The old stent is removed and a new one is placed to help keep the duct open.
31 services12 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.
28 services26 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
19 services18 patients
Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth 43237
This procedure involves a flexible tube with a camera and ultrasound device, inserted through the mouth to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like inflammation, tumors, or other abnormalities.
17 services17 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Maimonides Medical Center

Acute Care Hospitals · Brooklyn, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330194
Location4802 Tenth AvenueBrooklyn, NY 11219 · Kings County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22031 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.

Other Providers at the Same Location NPPES 13

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

Nurse Practitioner
8081 INNOVATION PARK DR STE 301
FAIRFAX, VA 22031
Obstetrics & Gynecology (Maternal & Fetal Medicine)
8081 INNOVATION PARK DR STE 301
FAIRFAX, VA 22031
Internal Medicine (Gastroenterology)
8081 INNOVATION PARK DR STE 301
FAIRFAX, VA 22031
Physician Assistant
8081 INNOVATION PARK DR STE 301
FAIRFAX, VA 22031
Obstetrics & Gynecology (Maternal & Fetal Medicine)
8081 INNOVATION PARK DR STE 301
FAIRFAX, VA 22031
Obstetrics & Gynecology (Maternal & Fetal Medicine)
8081 INNOVATION PARK DR STE 301
FAIRFAX, VA 22031
Nurse Practitioner
8081 INNOVATION PARK DR STE 301
FAIRFAX, VA 22031
Obstetrics & Gynecology (Maternal & Fetal Medicine)
8081 INNOVATION PARK DR STE 301
FAIRFAX, VA 22031

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 Ali Siddiqui's NPI number?

The NPI number for Ali Siddiqui is 1265478275. It was assigned to this individual provider in the NPPES registry on June 20, 2006.

Where is Ali Siddiqui located?

Ali Siddiqui practices at 8081 Innovation Park Dr Ste 301, Fairfax, VA 22031. The listed phone number is (571) 472-6431.

What is Ali Siddiqui's specialty?

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

Is Ali Siddiqui enrolled in Medicare?

Yes. Ali Siddiqui 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.

What insurance does Ali Siddiqui accept?

Health plans from Molina Healthcare list Ali Siddiqui as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ali Siddiqui affiliated with any hospitals?

According to CMS data, Ali Siddiqui is affiliated with Maimonides Medical Center.

When was this NPI record last updated?

The NPPES record for Ali Siddiqui was last updated on August 24, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.