Frederick Askari, MD, PHD
NPI 1689756108 · Gastroenterology Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Askari, MD, PHD is a Gastroenterology Physician provider in Ann Arbor, MI (NPI 1689756108).
Provider details
- NPI number
- 1689756108
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301051394 (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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
263 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 112 | $116 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 56 | $145 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 33 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $96 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 17 | $255 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ursodiol | 180 | 36 |
| Tacrolimus | 127 | 28 |
| Prednisone | 102 | 24 |
| Rifaximinbrand: Xifaxan | 91 | 14 |
| Cyclosporine, Modifiedbrand: Cyclosporine Modified | 69 | — |
| Spironolactone | 68 | 23 |
| Furosemide | 54 | 19 |
Practice location
Mailing address
Additional practice locations (1)
- 1500 East Medical Center Dr3rd Floor Taubman Ctr Recp DAnn Arbor, MI 48109-5362Phone: (734) 647-5944
Registry dates
- Enumerated
- 2006-10-20
- Last updated
- 2025-12-10
- Certified
- 2025-12-10
Frequently asked questions
- What is Frederick Askari's NPI number?
- Frederick Askari's National Provider Identifier (NPI) is 1689756108, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Askari's specialty?
- Frederick Askari is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Askari located?
- Frederick Askari's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
- What is Frederick Askari's phone number?
- The practice phone number listed in the NPPES registry for Frederick Askari is (734) 936-4000.
- Does Frederick Askari accept Medicare?
- Frederick Askari is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Askari's NPI active?
- Yes — Frederick Askari's NPI (1689756108) is active in the NPPES registry as of the last update on 2025-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.