1. Home
  2. Directory
  3. California
  4. San Diego
  5. Internal Medicine
  6. NPI Profile

HEME ON CALL USA PC
NPI 1669362414
Internal Medicine - Hematology & Oncology in San Diego, CA

Active since July 03, 2025
2907 SHELTER ISLAND DR STE 216, SAN DIEGO, CA 92106(786) 567-8310 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Heme On Call Usa Pc NPPES

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

HEME ON CALL USA PC (NPI 1669362414), doing business as Fem Women's Health, is a healthcare organization registered as a hematology & oncology in San Diego, California and active in the NPI registry since July 2025. The organization maintains a secondary practice location in Dallas and lists Steven Gary Fein, Owner, as its authorized official.

NPPES Registry Identity

NPI1669362414
Entity TypeOrganization
Primary Taxonomy207RH0003X
Legal Business NameHEME ON CALL USA PC
Location Address2907 SHELTER ISLAND DR STE 216San Diego, CA 92106-2744
Mailing Address8255 S Dixie HwyMiami, FL 33143-7717
Phone(786) 567-8310
Organization SubpartNo
Authorized OfficialSteven Gary FeinOwner · (786) 567-8310
Enumeration DateJuly 3, 2025
Last NPPES UpdateJune 29, 2026
NPPES CertifiedJune 29, 2026
✔ NPI 1669362414 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
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.
2907 SHELTER ISLAND DR STE 216, San Diego, CA 92106
Open in Google Maps ↗

Other Names 1

Doing Business AsFem Women's Health

Secondary Practice Location 1

Location 113151 Emily Rd Ste 100Dallas, TX 75240-8966 · Phone (832) 209-7546

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Heme On Call Usa Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Heme On Call Usa PC, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Steven Fein, M.D.
Hematology/Oncology
NPI 1437146552
8255 S DIXIE HWY
Miami, FL 33143
(305) 458-1384
✔ PECOS✔ Accepts Medicare2,271 mi
Stacy Henigsman, D.O.
Obstetrics/Gynecology
NPI 1699827162
90 MAIDEN LN RM 300
New York, NY 10038
(646) 290-9560
✔ PECOS✔ Accepts Medicare2,436 mi

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

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 Heme On Call Usa PC's NPI number?

The NPI number for Heme On Call Usa PC is 1669362414. It was assigned to this organization in the NPPES registry on July 3, 2025. The provider is doing business as FEM Women's Health.

Where is Heme On Call Usa PC located?

Heme On Call Usa PC is located at 2907 Shelter Island Dr Ste 216, San Diego, CA 92106. The listed phone number is (786) 567-8310.

What is Heme On Call Usa PC's specialty?

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

Is Heme On Call Usa PC enrolled in Medicare?

Yes. Heme On Call Usa PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Heme On Call Usa PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Heme On Call Usa PC, in Hematology/Oncology and Obstetrics/Gynecology. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Heme On Call Usa PC accept?

Health plans from Blue Cross and Blue Shield of Texas list Heme On Call Usa PC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Heme On Call Usa PC was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.