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MARTHA S HYNES M.D.
NPI 1801800750
Obstetrics & Gynecology in Torrance, CA

Active since July 28, 2006PECOS Enrolled
20911 EARL ST STE 460, TORRANCE, CA 90503(310) 540-4060(310) 316-3761 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Martha S Hynes M.d. NPPES

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

MARTHA S HYNES M.D. (NPI 1801800750) is an individual obstetrics & gynecology provider in Torrance, California, licensed in California (G47713) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801800750
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameMARTHA S HYNESCredential: M.D.
Location Address20911 EARL ST STE 460Torrance, CA 90503-4355
Mailing Address20911 Earl St Ste 460Torrance, CA 90503-4355 · (310) 540-4060 · Fax (310) 316-3761
Phone(310) 540-4060
Fax(310) 316-3761
Sole ProprietorNo
Enumeration DateJuly 28, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1801800750 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · G47713
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.
20911 EARL ST STE 460, Torrance, CA 90503
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Other Identifiers 2

Medicare UPINA92750CA
Medicare ID-Type UnspecifiedWG47713ACA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Martha S Hynes 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 Martha Hynes reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mona P Ramaney MD Inc
0.1 mi
Obstetrics & Gynecology
4201 TORRANCE BLVD, SUITE 745
Torrance, CA 90503
  • Reassigned Medicare billing, California enrollment
  • 2 clinicians in this Medicare group
NPI 1780698670 (310) 540-4060

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 90503 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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

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

MONA P. TAHILRAMANEY M.D.
Obstetrics & Gynecology
20911 EARL ST STE 460
TORRANCE, CA 90503
Los Angeles County (310) 540-4060

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 Martha Hynes's NPI number?

The NPI number for Martha Hynes is 1801800750. It was assigned to this individual provider in the NPPES registry on July 28, 2006.

Where is Martha Hynes located?

Martha Hynes practices at 20911 Earl St Ste 460, Torrance, CA 90503. The listed phone number is (310) 540-4060.

What is Martha Hynes's specialty?

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

Is Martha Hynes enrolled in Medicare?

Yes. Martha Hynes is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Martha Hynes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Martha Hynes reassigns Medicare benefits to Mona P Ramaney MD Inc (Torrance, 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 Martha Hynes'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 Martha Hynes was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.