Jaquelyn Fleckenstein, MD
NPI 1386600864 · Gastroenterology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jaquelyn Fleckenstein, MD is a Gastroenterology Physician provider in Saint Louis, MO (NPI 1386600864).
Provider details
- NPI number
- 1386600864
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 2012005908 (MO)
Specialties & taxonomies
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
398 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 154 | $86 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 74 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 57 | $121 |
| Measurement of Liver Stiffness91200 | 41 | $29 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 19 | $125 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
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 | 248 | 40 |
| Tacrolimus | 163 | 29 |
| Furosemide | 140 | 28 |
| Spironolactone | 140 | 40 |
| Carvedilol | 73 | 18 |
| Mycophenolate Mofetil | 72 | 18 |
| Tenofovir Alafenamidebrand: Vemlidy | 69 | — |
| Omeprazole | 65 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 across 1 record (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
Registry dates
- Enumerated
- 2006-04-25
- Last updated
- 2025-04-17
Frequently asked questions
- What is Jaquelyn Fleckenstein's NPI number?
- Jaquelyn Fleckenstein's National Provider Identifier (NPI) is 1386600864, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jaquelyn Fleckenstein's specialty?
- Jaquelyn Fleckenstein is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Jaquelyn Fleckenstein located?
- Jaquelyn Fleckenstein's practice location on file with NPPES is 4921 Parkview Pl, Saint Louis, MO 63110-1032.
- What is Jaquelyn Fleckenstein's phone number?
- The practice phone number listed in the NPPES registry for Jaquelyn Fleckenstein is (314) 747-2066.
- Does Jaquelyn Fleckenstein accept Medicare?
- Jaquelyn Fleckenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jaquelyn Fleckenstein's NPI active?
- Yes — Jaquelyn Fleckenstein's NPI (1386600864) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.