DR. GARY F WILLEN (MD) – Obstetrics & Gynecology Physician, NPI 1700857422

DR. GARY F WILLEN (MD) is a healthcare provider. based in Carson city, Nevada. specializing in OBSTETRICS/GYNECOLOGY. They hold the professional credentials MD. They hold a License No. G53304 (CA). The NPI Number for DR. GARY F WILLEN (MD) is 1700857422

Main info

Male
51 Years Of Experience
Accepts Medicare Assignment
Name
DR. GARY F WILLEN (MD)
NPI
1700857422
Phone
(775) 267-6700
Address
961 MICA DR
Enumeration Date
30 January 2006
Last Update Date
7 March 2013

Doctor Profile

Medical School Name
ALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Secondary Phone
7752676700
Graduation Year
1975 (51 years ago)
PAC ID
1759374820
Professional Enrollment ID
I20040405001514
Address ID
NV897057176CA961XXAXXX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

339 OBSTETRICS/GYNECOLOGY in NV

Provider Addresses for DR. GARY F WILLEN (MD)

  • 961 MICA DR

    CARSON CITY, NV 897057269

    Phone: (775) 267-6700

    Fax: (775) 267-6609

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 32 Open Payments records for all available years, with a total value of $597.

Total Amount is formed as General ($597) + Research ($0) + Ownership ($0) = $597.

Last reported payment date: 2024-11-20 • Largest payer in this snapshot: Astellas Pharma US Inc ($297).

Total Amount

$597

General + Research + Ownership

Payments

32

Total payment records

General Amount

$597

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-20

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-06-29

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040405001514IObstetrics/GynecologyCATBD
I20040629000114IObstetrics/GynecologyNVTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99214Established patient office or other outpatient visit, 30-39 minutes10797$0
G0101Cervical or vaginal cancer screening; pelvic and clinical breast examination1919$0
Q0091Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory1818$0
82270Stool analysis for blood to screen for colon tumors1111$0
99204New patient office or other outpatient visit, 45-59 minutes1111$0
View full utilization report →

Insurance plans in this area (ZIP 89705)

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Reviews

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Frequently asked questions

What is the 10-digit NPI for DR. GARY F WILLEN (MD)?
DR. GARY F WILLEN (MD) — NPI 1700857422 — is the standard way to identify this listing.
Does CMS list DR. GARY F WILLEN (MD) as active?
Yes — DR. GARY F WILLEN (MD) is active in the NPI listing used on this page.
What taxonomy line describes DR. GARY F WILLEN (MD)?
For research purposes, treat DR. GARY F WILLEN (MD) as Obstetrics & Gynecology Physician in this dataset. Clinical services aligned with this taxonomy classification.
Does DR. GARY F WILLEN (MD) list a practice location?
Patients near Carson City, Nevada may find DR. GARY F WILLEN (MD) in results; validate coverage separately.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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