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DR. MELISSA NICHOLE HOLTZ MD
NPI 1427254002
Obstetrics & Gynecology in Sioux City, IA

Active since June 21, 2007PECOS EnrolledAccepts Medicare Assignment
2730 PIERCE ST STE 201, SIOUX CITY, IA 51104(712) 277-3141(712) 277-2645 Get Directions Write a Review

NPPES record last updated: October 18, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Melissa Nichole Holtz Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MELISSA NICHOLE HOLTZ MD (NPI 1427254002) is an individual obstetrics & gynecology provider in Sioux City, Iowa, licensed in Iowa (39393) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, is affiliated with St Lukes Regional Medical Center, and is a graduate of Medical College Of Wisconsin (2007).

NPPES Registry Identity

NPI1427254002
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. MELISSA NICHOLE HOLTZCredential: MD
Location Address2730 PIERCE ST STE 201Sioux City, IA 51104-3764
Mailing Address2730 Pierce St Ste 201Sioux City, IA 51104-3764 · (712) 277-3141
Phone(712) 277-3141
Fax(712) 277-2645
Sole ProprietorNo
Medical School CMSMedical College Of WisconsinGraduated 2007
Enumeration DateJune 21, 2007
Last NPPES UpdateOctober 18, 2022
NPPES CertifiedOctober 18, 2022
✔ NPI 1427254002 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IA · 39393
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2730 PIERCE ST STE 201, Sioux City, IA 51104
Open in Google Maps ↗

Other Identifiers 5

Medicaid1427254002IA
OtherIB2715001Medicare Ptan
Medicaid1427254002NE
Medicaid1427254002SD
OtherP01198031Medicare Ptan Railroad

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Melissa Nichole Holtz Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8426294760
PECOS Enrollment IDI20130411000473
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Melissa Holtz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Siouxland Obstetrics & Gynecology, P.C.
Same address
Obstetrics & Gynecology
2730 PIERCE ST STE 201
Sioux City, IA 51104
  • Reassigned Medicare billing, Iowa enrollment
  • Medicare enrollment name: Siouxland Obstetrics & Gynecology PC
  • 7 clinicians in this Medicare group
NPI 1134250939 (712) 277-3141
Siouxland Community Health Center
1.3 mi
Federally Qualified Health Center (FQHC)
1021 NEBRASKA ST
Sioux City, IA 51105
  • Reassigned Medicare billing, Iowa enrollment
  • 47 clinicians in this Medicare group
NPI 1558355305 (712) 252-2477

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
14 services14 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Lukes Regional Medical Center

Acute Care Hospitals · Sioux City, IA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160146
Location2720 Stone Park BoulevardSioux City, IA 51104 · Woodbury County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 51104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.23 typical visit price
range $52.96 – $161.40
Typical copayment $30.55 (range $13.24 – $40.35)
Most-billed visit code 99204
Established Patient
$66.36 typical visit price
range $16.91 – $131.98
Typical copayment $16.59 (range $4.22 – $32.99)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SIOUXLAND OBSTETRICS & GYNECOLOGY, P.C.
Obstetrics & Gynecology
2730 PIERCE ST STE 201
SIOUX CITY, IA 51104
Woodbury County (712) 277-3141
EMILY OBERLE DO
Obstetrics & Gynecology
2730 PIERCE ST STE 201
SIOUX CITY, IA 51104
Woodbury County (712) 277-3141
DR. PAUL JOSEPH EASTMAN M.D.
Obstetrics & Gynecology
2730 PIERCE ST STE 201
SIOUX CITY, IA 51104
Woodbury County (712) 277-3141
CHANDLER KASUSKE
Obstetrics & Gynecology
2730 PIERCE ST STE 201
SIOUX CITY, IA 51104
Woodbury County (712) 277-3141
DR. TAUHNI TEE HUNT M.D.
Obstetrics & Gynecology
2730 PIERCE ST STE 201
SIOUX CITY, IA 51104
Woodbury County (712) 277-3141

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Melissa Holtz's NPI number?

The NPI number for Melissa Holtz is 1427254002. It was assigned to this individual provider in the NPPES registry on June 21, 2007.

Where is Melissa Holtz located?

Melissa Holtz practices at 2730 Pierce St Ste 201, Sioux City, IA 51104. The listed phone number is (712) 277-3141.

What is Melissa Holtz's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Melissa Holtz enrolled in Medicare?

Yes. Melissa Holtz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Melissa Holtz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Holtz reassigns Medicare benefits to 2 organizations: Siouxland Obstetrics & Gynecology, P.C. (Sioux City, IA) and Siouxland Community Health Center (Sioux City, IA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melissa Holtz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melissa Holtz accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Avera Health Plans and 4 other insurers list Melissa Holtz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Melissa Holtz affiliated with any hospitals?

According to CMS data, Melissa Holtz is affiliated with St Lukes Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Melissa Holtz was last updated on October 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.