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PHYLLIS H KLEIN M.D.
NPI 1932166519
Internal Medicine - Hematology & Oncology in West Covina, CA

Active since April 27, 2006PECOS Enrolled
1250 S SUNSET AVE STE 303, WEST COVINA, CA 91790(626) 856-5858 Get Directions Write a Review

NPPES record last updated: May 11, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 11, 2020, Mar 17, 2018, Jul 5, 2017 (3 updates tracked since 2017).

About Phyllis H Klein M.d. NPPES

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

PHYLLIS H KLEIN M.D. (NPI 1932166519) is an individual hematology & oncology provider in West Covina, California, licensed in California (G23172) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1932166519
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NamePHYLLIS H KLEINCredential: M.D.
Location Address1250 S SUNSET AVE STE 303West Covina, CA 91790-3912
Mailing Address1333 S Mayflower Ave, 2nd FloorMonrovia, CA 91016-4066 · (626) 775-3514 · Fax (626) 408-3911
Phone(626) 856-5858
Sole ProprietorYes
Enumeration DateApril 27, 2006
Last NPPES UpdateMay 11, 20203 updates tracked since enumeration
NPPES CertifiedMay 11, 2020
✔ NPI 1932166519 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
Licenses✔ Licensed in CA · G23172✔ Licensed in OR · MD198279
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
1250 S SUNSET AVE STE 303, West Covina, CA 91790
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11500 DUARTE RDDUARTE, CA 91010-3012 · Phone (626) 775-3514
Location 22610 Uhrmann RdKlamath Falls, OR 97601-1123 · Phone (541) 274-4171 · Fax (541) 274-4579

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Phyllis H Klein 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 Reassignments

3

Medicare enrollment records show Phyllis Klein reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Dignity Health
482 mi
Multi-Specialty
2340 LIBERTY PKWY STE 200
Red Bluff, CA 96080
  • Reassigned Medicare billing, California enrollment
  • 131 clinicians in this Medicare group
NPI 1134687734 (530) 529-7760
Guthrie Medical Group, P.C.
2,274 mi
Multi-Specialty
130 CENTERWAY
Corning, NY 14830
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Guthrie Medical Group PC
  • 798 clinicians in this Medicare group
NPI 1134178635 (607) 936-9971
Mary Imogene Bassett Hospital
2,383 mi
Multi-Specialty
1 ATWELL RD
Cooperstown, NY 13326
  • Reassigned Medicare billing, New York enrollment
  • 1,052 clinicians in this Medicare group
NPI 1083664221 (607) 547-6858

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 91790 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
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
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.

VAN ERIC BIGLANG-AWA
Pharmacist (Oncology)
1250 S SUNSET AVE STE 303
WEST COVINA, CA 91790
Los Angeles County (626) 218-1335
CARY A PRESANT M.D.
Internal Medicine (Hematology & Oncology)
1250 S SUNSET AVE STE 303
WEST COVINA, CA 91790
Los Angeles County (626) 856-5858
JESSICA MARIE OJEDA FNP-C
Nurse Practitioner (Family)
1250 S SUNSET AVE STE 303
WEST COVINA, CA 91790
Los Angeles County (626) 856-5858
CITY OF HOPE MEDICAL FOUNDATION
Internal Medicine (Hematology & Oncology)
1250 S SUNSET AVE STE 303
WEST COVINA, CA 91790
Los Angeles County (626) 856-5858

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 Phyllis Klein's NPI number?

The NPI number for Phyllis Klein is 1932166519. It was assigned to this individual provider in the NPPES registry on April 27, 2006.

Where is Phyllis Klein located?

Phyllis Klein practices at 1250 S Sunset Ave Ste 303, West Covina, CA 91790. The listed phone number is (626) 856-5858.

What is Phyllis Klein's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Phyllis Klein enrolled in Medicare?

Yes. Phyllis Klein is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Phyllis Klein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Phyllis Klein reassigns Medicare benefits to 3 organizations: Dignity Health (Red Bluff, CA), Guthrie Medical Group, P.C. (Corning, NY) and Mary Imogene Bassett Hospital (Cooperstown, NY). 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 Phyllis Klein'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 Phyllis Klein was last updated on May 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.