Margaret Smollen, M.D.
NPI 1255325189 · Obstetrics & Gynecology Physician · Iowa City, IA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Smollen, M.D. is a Obstetrics & Gynecology Physician provider in Iowa City, IA (NPI 1255325189).
Provider details
- NPI number
- 1255325189
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 27112 (IN)
Specialties & taxonomies
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
172 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) |
|---|---|---|
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 87 | $25 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 62 | $33 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 23 | $17 |
Typical Medicare-allowed amounts for these services range $17–$33 (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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 21 | 11 |
| Progesterone, Micronizedbrand: Progesterone | 18 | — |
| Medroxyprogesterone Acetate | 15 | — |
| Estradiolbrand: Imvexxy | 14 | — |
| Clobetasol Propionate | 12 | — |
| Megestrol Acetate | 12 | — |
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 , 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
- 2005-09-07
- Last updated
- 2023-05-19
- Certified
- 2023-05-19
Frequently asked questions
- What is Margaret Smollen's NPI number?
- Margaret Smollen's National Provider Identifier (NPI) is 1255325189, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Smollen's specialty?
- Margaret Smollen is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Smollen located?
- Margaret Smollen's practice location on file with NPPES is 200 Hawkins Dr, Iowa City, IA 52242-1009.
- What is Margaret Smollen's phone number?
- The practice phone number listed in the NPPES registry for Margaret Smollen is (319) 356-2294.
- Does Margaret Smollen accept Medicare?
- Margaret Smollen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Smollen's NPI active?
- Yes — Margaret Smollen's NPI (1255325189) is active in the NPPES registry as of the last update on 2023-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.