Firdous Siddiqui, MD
NPI 1538107651 · Gastroenterology Physician · Southfield, MI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Firdous Siddiqui, MD is a Gastroenterology Physician provider in Southfield, MI (NPI 1538107651).
Provider details
- NPI number
- 1538107651
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4301060352 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
386 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 59 | $50 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 55 | $174 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 41 | $132 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 40 | $91 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 40 | $119 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 195 | 76 |
| Dicyclomine Hcl | 146 | 47 |
| Linaclotidebrand: Linzess | 105 | 29 |
| Loperamide Hclbrand: Loperamide | 78 | 24 |
| Famotidine | 54 | 24 |
| Pantoprazole Sodium | 43 | 19 |
| Azathioprine | 37 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$525 across 26 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 27200 Lahser RdSuite 100Southfield, MI 48034-2137Phone: (248) 208-9257Fax: (248) 208-9217
- 27209 Lahser Rd Ste 226Southfield, MI 48034-8403Phone: (248) 945-1220Fax: (248) 945-1222
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2018-03-17
Frequently asked questions
- What is Firdous Siddiqui's NPI number?
- Firdous Siddiqui's National Provider Identifier (NPI) is 1538107651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Firdous Siddiqui's specialty?
- Firdous Siddiqui is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Firdous Siddiqui located?
- Firdous Siddiqui's practice location on file with NPPES is 27209 Lahser Rd Ste 226, Southfield, MI 48034-8403.
- What is Firdous Siddiqui's phone number?
- The practice phone number listed in the NPPES registry for Firdous Siddiqui is (248) 945-1220.
- Does Firdous Siddiqui accept Medicare?
- Firdous Siddiqui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Firdous Siddiqui's NPI active?
- Yes — Firdous Siddiqui's NPI (1538107651) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.