Marlene Birkholtz-Wier, D.O.
NPI 1881663847 · Family Medicine Physician · Clarinda, IA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marlene Birkholtz-Wier, D.O. is a Family Medicine Physician provider in Clarinda, IA (NPI 1881663847).
Provider details
- NPI number
- 1881663847
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 349 (NE)
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
71 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) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 24 | $166 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 20 | $85 |
| Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378 | 14 | $165 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 13 | $228 |
Typical Medicare-allowed amounts for these services range $85–$228 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sucralfate | 27 | 19 |
| Omeprazole | 25 | — |
| Pantoprazole Sodium | 16 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-14
- Last updated
- 2014-05-08
Frequently asked questions
- What is Marlene Birkholtz-Wier's NPI number?
- Marlene Birkholtz-Wier's National Provider Identifier (NPI) is 1881663847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marlene Birkholtz-Wier's specialty?
- Marlene Birkholtz-Wier is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marlene Birkholtz-Wier located?
- Marlene Birkholtz-Wier's practice location on file with NPPES is 220 Essie Davison Dr, Clarinda, IA 51632-2915.
- What is Marlene Birkholtz-Wier's phone number?
- The practice phone number listed in the NPPES registry for Marlene Birkholtz-Wier is (712) 542-2176.
- Does Marlene Birkholtz-Wier accept Medicare?
- Marlene Birkholtz-Wier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marlene Birkholtz-Wier's NPI active?
- Yes — Marlene Birkholtz-Wier's NPI (1881663847) is active in the NPPES registry as of the last update on 2014-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.