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MARYANNE A HANNANEY MD
NPI 1497797260
Obstetrics & Gynecology in Riverton, WY

Active since June 13, 2006PECOS EnrolledAccepts Medicare Assignment
2300 GASSER RD., RIVERTON, WY 82501(307) 856-4232(307) 856-4243 Get Directions Write a Review

NPPES record last updated: June 4, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Maryanne A Hannaney Md NPPES

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

MARYANNE A HANNANEY MD (NPI 1497797260) is an individual obstetrics & gynecology provider in Riverton, Wyoming, licensed in Wyoming (6798A) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1975).

NPPES Registry Identity

NPI1497797260
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameMARYANNE A HANNANEYCredential: MD
Location Address2300 GASSER RD.Riverton, WY 82501
Mailing Address2300 Gasser Rd.Riverton, WY 82501 · (307) 856-4232 · Fax (307) 856-4243
Phone(307) 856-4232
Fax(307) 856-4243
Sole ProprietorNo
Medical School CMSOtherGraduated 1975
Enumeration DateJune 13, 2006
Last NPPES UpdateJune 4, 2013
✔ NPI 1497797260 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in WY · 6798A
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.
2300 GASSER RD., Riverton, WY 82501
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Other Identifiers 3

Medicare ID-Type Unspecified9818WY
Medicaid118601900WY
Medicare UPINA76817WY

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

Maryanne A Hannaney 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 ID3476444712
PECOS Enrollment IDI20171226001662
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 Maryanne Hannaney reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Magella Medical Group, Inc.
827 mi
Maternal & Fetal Medicine
2888 LONG BEACH BLVD STE 400
Long Beach, CA 90806
  • Reassigned Medicare billing, California enrollment
  • 191 clinicians in this Medicare group
NPI 1376640086 (562) 997-8510
Obhg California, P.C.
1,505 mi
Obstetrics & Gynecology
777 LOWNDES HILL RD BLDG 1
Greenville, SC 29607
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Obhg California PC
  • 711 clinicians in this Medicare group
NPI 1215258892 (800) 967-2289

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 82501 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
$129.37 typical visit price
range $56.42 – $170.72
Typical copayment $32.34 (range $14.10 – $42.68)
Most-billed visit code 99204
Established Patient
$70.32 typical visit price
range $18.19 – $139.32
Typical copayment $17.58 (range $4.54 – $34.83)
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.

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 Maryanne Hannaney's NPI number?

The NPI number for Maryanne Hannaney is 1497797260. It was assigned to this individual provider in the NPPES registry on June 13, 2006.

Where is Maryanne Hannaney located?

Maryanne Hannaney practices at 2300 Gasser Rd., Riverton, WY 82501. The listed phone number is (307) 856-4232.

What is Maryanne Hannaney's specialty?

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

Is Maryanne Hannaney enrolled in Medicare?

Yes. Maryanne Hannaney 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 Maryanne Hannaney's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maryanne Hannaney reassigns Medicare benefits to 2 organizations: Magella Medical Group, Inc. (Long Beach, CA) and Obhg California, P.C. (Greenville, SC). 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 Maryanne Hannaney's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Maryanne Hannaney was last updated on June 4, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.