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MRS. ATENA ASIAII MD
NPI 1720421282
Obstetrics & Gynecology in Mountain View, CA

Active since April 15, 2013PECOS EnrolledAccepts Medicare Assignment
2495 HOSPITAL DR STE 450, MOUNTAIN VIEW, CA 94040(650) 694-3870(650) 694-3871 Get Directions Write a Review

NPPES record last updated: November 11, 2020. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 11, 2020, May 2, 2019, Feb 26, 2018 (3 updates tracked since 2018).

About Mrs. Atena Asiaii Md NPPES

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

MRS. ATENA ASIAII MD (NPI 1720421282) is an individual obstetrics & gynecology provider in Mountain View, California, licensed in California (A162311) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS and is a graduate of Warren Alpert Medical School Of Brown University (2013).

NPPES Registry Identity

NPI1720421282
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameMRS. ATENA ASIAIICredential: MD
Location Address2495 HOSPITAL DR STE 450Mountain View, CA 94040-4171
Mailing Address2495 Hospital Dr Ste 450Mountain View, CA 94040-4171 · (650) 694-3870 · Fax (650) 694-3871
Phone(650) 694-3870
Fax(650) 694-3871
Sole ProprietorYes
Medical School CMSWarren Alpert Medical School Of Brown UniversityGraduated 2013
Enumeration DateApril 15, 2013
Last NPPES UpdateNovember 11, 20203 updates tracked since enumeration
NPPES CertifiedNovember 11, 2020
✔ NPI 1720421282 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in CA · A162311✔ Licensed in MA · 278453
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.
2495 HOSPITAL DR STE 450, Mountain View, CA 94040
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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

Mrs. Atena Asiaii 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 ID7315170248
PECOS Enrollment IDI20200603000894
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 Reassignment

Medicare enrollment records show Atena Asiaii reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ucsf Health Medical Foundation
35 mi
Pediatrics
6425 CHRISTIE AVE STE 220
Emeryville, CA 94608
  • Reassigned Medicare billing, California enrollment
  • 79 clinicians in this Medicare group
NPI 1043628316 (415) 476-7220

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 94040 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
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
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 4

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

DR. ANDREW RATHNASAMY XAVIER MD
Psychiatry & Neurology (Vascular Neurology)
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (408) 871-3400
DR. PATRICIA YEH M.D.
Internal Medicine
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 962-4370
DR. KAREN YUE-SHANG FANN D.O.
Otolaryngology
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 988-4161
MS. WENDY CRISTINA PERDOMO PENA M.D.
Internal Medicine (Rheumatology)
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (408) 871-3400

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 Atena Asiaii's NPI number?

The NPI number for Atena Asiaii is 1720421282. It was assigned to this individual provider in the NPPES registry on April 15, 2013.

Where is Atena Asiaii located?

Atena Asiaii practices at 2495 Hospital Dr Ste 450, Mountain View, CA 94040. The listed phone number is (650) 694-3870.

What is Atena Asiaii's specialty?

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

Is Atena Asiaii enrolled in Medicare?

Yes. Atena Asiaii 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 organization bills Medicare for Atena Asiaii's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Atena Asiaii reassigns Medicare benefits to Ucsf Health Medical Foundation (Emeryville, CA). The 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 Atena Asiaii'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 Atena Asiaii was last updated on November 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.