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DR. IRYNA ANATOLIYEVNA FALKENSTEIN M.D.
NPI 1639303118
Ophthalmology - Glaucoma Specialist in Oakland, CA

Active since May 12, 2009PECOS Enrolled
491 30TH ST STE 103, OAKLAND, CA 94609(510) 763-9775 Get Directions Write a Review

NPPES record last updated: July 6, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Iryna Anatoliyevna Falkenstein M.d. NPPES

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

DR. IRYNA ANATOLIYEVNA FALKENSTEIN M.D. (NPI 1639303118) is an individual glaucoma specialist in Oakland, California, licensed in California (C145657) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.

NPPES Registry Identity

NPI1639303118
Entity TypeIndividualFemale
Primary Taxonomy207WX0009X
Provider Legal NameDR. IRYNA ANATOLIYEVNA FALKENSTEINCredential: M.D.
Location Address491 30TH ST STE 103Oakland, CA 94609
Mailing Address491 30th St Ste 103Oakland, CA 94609-3235 · (510) 763-9775 · Fax (510) 763-1501
Phone(510) 763-9775
Sole ProprietorYes
Enumeration DateMay 12, 2009
Last NPPES UpdateJuly 6, 2018
✔ NPI 1639303118 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmology · Glaucoma SpecialistAllopathic & Osteopathic Physicians
Taxonomy Code207WX0009X
License✔ Licensed in CA · C145657
Definition
An ophthalmologist who specializes in the treatment of glaucoma and other disorders related to increased intraocular pressure and optic nerve damage. This specialty involves the medical and surgical treatment of these conditions.
Also ListedOphthalmologyTaxonomy 207W00000X · License 254349 (MA)
491 30TH ST STE 103, Oakland, CA 94609
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Secondary Practice Location 1

Location 1711 Van Ness Ave Ste 330San Francisco, CA 94102-3285 · Phone (415) 771-4020 · Fax (415) 771-4095

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Iryna Anatoliyevna Falkenstein M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Iryna Falkenstein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Contra Costa County
10 mi
Family Planning, Non-Surgical
13601 SAN PABLO AVE
San Pablo, CA 94806
  • Reassigned Medicare billing, California enrollment
  • 530 clinicians in this Medicare group
NPI 1417036484 (925) 957-5429

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 94609 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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 2

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

CRYSTAL PHUONG LE M.D.
Ophthalmology (Glaucoma Specialist)
491 30TH ST STE 103
OAKLAND, CA 94609
Alameda County (510) 763-9775
CRYSTAL LE, MD CORPORATION
Ophthalmology (Glaucoma Specialist)
491 30TH ST STE 103
OAKLAND, CA 94609
Alameda County (510) 763-9775

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 Iryna Falkenstein's NPI number?

The NPI number for Iryna Falkenstein is 1639303118. It was assigned to this individual provider in the NPPES registry on May 12, 2009.

Where is Iryna Falkenstein located?

Iryna Falkenstein practices at 491 30th St Ste 103, Oakland, CA 94609. The listed phone number is (510) 763-9775.

What is Iryna Falkenstein's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Glaucoma Specialist, with taxonomy code 207WX0009X.

Is Iryna Falkenstein enrolled in Medicare?

Yes. Iryna Falkenstein is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Iryna Falkenstein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Iryna Falkenstein reassigns Medicare benefits to Contra Costa County (San Pablo, 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 Iryna Falkenstein'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 Iryna Falkenstein was last updated on July 6, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.