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Obstetrics & Gynecology Specialists in Waterloo, IA

Browse 16 Obstetrics & Gynecology providers listed in NPPES with a practice address in Waterloo, Iowa.

16 Healthcare Providers

How Waterloo compares with the U.S.

Waterloo has 24 clinicians in Obstetrics & Gynecology per 100,000 residents, about 1.8 times the U.S. rate of 14.

That is 16 active clinicians in Obstetrics & Gynecology with a practice address in Waterloo, for a population of 67,008.

The Iowa rate is 11 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of clinicians in Obstetrics & Gynecology in Waterloo listed in the CMS Medicare file (11 of 11) accept Medicare assignment. That is similar to the Iowa share of 98%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

None of the 11 clinicians in Obstetrics & Gynecology in Waterloo listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Obstetrics & Gynecology Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Obstetrics & Gynecology practitioners in Waterloo, IA

Source: CMS PECOS
PECOS Enrolled Specialists 13 In Waterloo, IA
Part B Lab & Imaging Eligible 13 Diagnostic Referrals
DME Ordering Eligible 14 Durable Medical Equipment
Home Health Agency Referrals 13 HHA Ordering Eligible
Showing 1โ€“16 of 16 providers
With recent CMS data first, then Aโ€“Z

Dr. Olanike Omotola Alonge-Obe , MD, MPH

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
3421 W 9th St Ste G4500, Waterloo, IA 507025401
Phone: 3192728200
NPI Identifier 1174921787
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Dr. Mohamad Hamdi , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
1015 S Hackett Rd, Suite 200, Waterloo, IA 507013500
Phone: 3192665491
NPI Identifier 1750570172
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Dr. Brian David Hokeness , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
1825 Logan Ave, Waterloo, IA 507031916
Phone: 3192353941
NPI Identifier 1841753423
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Dr. Kristina Hunter , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
Mercyone Waterloo Ob/gyn, 3421 W 9th St Ste G4500, Waterloo, IA 507025401
Phone: 3192728200
NPI Identifier 1992296891
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Dr. Kelsey Lee Wagner , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
146 W Dale St Ste 102, Waterloo, IA 507031901
Phone: 3192355050
NPI Identifier 1588082408
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Dr. Heather Murphy Marthers , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
3421 W 9th St Ste G4500, Waterloo, IA 507025401
Phone: 3192728200
NPI Identifier 1750341384
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Dr. Publio Ortiz , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
146 W Dale St, Suite 102, Waterloo, IA 507031901
Phone: 3192355050
NPI Identifier 1801873088
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Dr. Monica Ploetzke , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
146 W Dale St Ste 102, Waterloo, IA 507031901
Phone: 3192355050
NPI Identifier 1396158200
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Dr. Brett R Richman , MD

Obstetrics & Gynecology

Active NPI Status
1015 S Hackett Rd, Suite 200, Waterloo, IA 507013500
Phone: 3192665491
NPI Identifier 1598763286
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Dr. Karla Nyreen Solheim , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
905 Franklin St, Waterloo, IA 507034407
Phone: 3198743275
NPI Identifier 1831484906
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Dr. Assumpta Grace Twekise , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
3421 W 9th St Ste G4500, Waterloo, IA 507025401
Phone: 3192728200
NPI Identifier 1972950079
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Dr. Barbara L Weno , MD

Obstetrics & Gynecology

Active NPI Status
3421 W 9th St, Suite G4500, Waterloo, IA 507025401
Phone: 3192338865
NPI Identifier 1871571133
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Dr. Katee Lynn Wyant , MD

Obstetrics & Gynecology

Active NPI Status Accepts Medicare Assignment
146 W Dale St Ste 102, Waterloo, IA 507031901
Phone: 3192355050
NPI Identifier 1154812964
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Dr. Brent Matthew Hintz , MD

Obstetrics & Gynecology

Active NPI Status
212 West Dale St., Suite 402, Waterloo, IA 50703
Phone: 3192353865
NPI Identifier 1558477745
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Dr. Anthony A Onuigbo , MD

Obstetrics & Gynecology

Active NPI Status
227 E San Marnan Dr, Ste 1, Waterloo, IA 507025829
Phone: 3194861731
NPI Identifier 1255339925
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Dr. Grace Welp , MD

Obstetrics & Gynecology

Active NPI Status
146 W Dale St Ste 102, Waterloo, IA 507031901
Phone: 3192355050
NPI Identifier 1003548470
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Frequently Asked Questions about Obstetrics & Gynecology in Waterloo

How do I check a Obstetrics & Gynecology practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Iowa licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.