Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Tammy Underwood, CNM

Individual provider Advanced Practice Midwife · NPI 1346644267

Tammy Underwood, CNM is registered under Certified Nurse Midwife (CNM) in Freehold, New Jersey. Qualified in 2014, 12 years ago. Practices with Regional Womens Health Group LLC, a 353-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in New Jersey and Ohio.

Years since qualifying
12
Licensed in
NJ, OH
In the registry since
2014
Specialties on file
2
What do these letters mean?
CNM — Certified Nurse-Midwife
An advanced practice nurse who provides prenatal care and delivers babies.

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Practice location Address checks out

501 Iron Bridge Rd Ste 10
Freehold, NJ 07728-5305
Phone: (732) 431-2999
Fax: (732) 431-2993
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 510 Bridge Plaza Dr, Manalapan, NJ 07726-1745 — (732) 536-5552
  • 245 Main St Ste A, Matawan, NJ 07747-2006 — (732) 566-9466
  • 312 Applegarth Rd Ste 102, Monroe Twp, NJ 08831-5347 — (609) 860-0600
  • 960 S Prospect St, Marion, OH 43302-6225 — (740) 383-2776

Specialties & licences

Advanced Practice Midwife (primary) Taxonomy 367A00000X · Licence 25ME00073200 (NJ)
Advanced Practice Midwife Taxonomy 367A00000X · Licence 259607 (OH)

Record details

NPI number1346644267
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNM
Sole proprietorNo
NPI enumeratedOctober 21, 2014
Last updated in NPPESAugust 23, 2021
Certification dateAugust 23, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED NURSE MIDWIFE (CNM)
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Regional Womens Health Group Llc — 353 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients147
Services billed 282 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $176 9 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Regional Womens Health Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 353 clinicians in the practice; 12 are shown here.

Other providers in Freehold