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MARTIN C TYNAN MD
NPI 1639263999
Orthopaedic Surgery - Orthopaedic Trauma in Orange, CA

Active since October 03, 2006PECOS Enrolled
101 THE CITY DRIVE SOUTH, UCI MEDICAL CENTER, ORANGE, CA 92868(714) 456-2986 Get Directions Write a Review

NPPES record last updated: March 3, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Martin C Tynan Md NPPES

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

MARTIN C TYNAN MD (NPI 1639263999) is an individual orthopaedic trauma provider in Orange, California, licensed in Missouri (2007032032) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639263999
Entity TypeIndividualMale
Primary Taxonomy207XX0801X
Provider Legal NameMARTIN C TYNANCredential: MD
Location Address101 THE CITY DRIVE SOUTH, UCI MEDICAL CENTEROrange, CA 92868
Mailing AddressPo Box 513228, Ortho Faculty Of Irvine Med GrLos Angeles, CA 90051-3228 · (714) 456-2986
Phone(714) 456-2986
Sole ProprietorNo
Enumeration DateOctober 3, 2006
Last NPPES UpdateMarch 3, 2008
✔ NPI 1639263999 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Orthopaedic TraumaAllopathic & Osteopathic Physicians
Taxonomy Code207XX0801X
License✔ Licensed in MO · 2007032032
Definition
Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic trauma surgeons deal with the evaluation and management of acute orthopaedic injuries, evaluation and treatment of post-traumatic deformities and nonunions, acute and delayed reconstruction of pelvic and acetabular fractures, as well as osteotomy in the adult hip for treatment of hip arthritis.
Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License A53822 (CA)
101 THE CITY DRIVE SOUTH, Orange, CA 92868
Open in Google Maps ↗

Other Identifiers 1

Medicare PINWA53822ACA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Martin C Tynan Md 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 Martin Tynan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of California
Same address
Orthopaedic Surgery
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 61 clinicians in this Medicare group
NPI 1356399703 (714) 456-3905

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

Other Providers at the Same Location NPPES 20

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

MISS SHANNON LOUISE TOOHEY MD
Emergency Medicine (Emergency Medical Services)
101 THE CITY DRIVE SOUTH, BLDG 200 , SUITE 710, RT 128-01
ORANGE, CA 92868
Orange County (715) 456-5239
ANASTASIA WEILAND MD
Internal Medicine (Infectious Disease)
101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (800) 465-3203
MRS. KELLIE ANH HUE BINDER NP
Registered Nurse (Pain Management)
101 THE CITY DRIVE SOUTH, UC IRVINE MEDICAL CENTER
ORANGE, CA 92868
Orange County (714) 456-2986
DR. KIM-ANH THI NGUYEN M.D.
Anesthesiology
101 THE CITY DRIVE SOUTH, UCI DEPT OF ANESTHESIOLOGY AND PERIOPERATIVE CARE
ORANGE, CA 92868
Orange County (714) 553-5019
ELIOTT CHUNG
Student in an Organized Health Care Education/Training Program
101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (949) 231-7652
JACOB SCHETTLER
Student in an Organized Health Care Education/Training Program
101 THE CITY DRIVE SOUTH, RT. 128-01
ORANGE, CA 92868
Orange County (714) 456-8116
DR. METHA RAMA CHEA MD
Student in an Organized Health Care Education/Training Program
101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (714) 456-7890
NICHOLAS GEORGE AMBUS MD
Student in an Organized Health Care Education/Training Program
101 THE CITY DRIVE SOUTH
ORANGE, CA 92868
Orange County (480) 452-6467

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 Martin Tynan's NPI number?

The NPI number for Martin Tynan is 1639263999. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Martin Tynan located?

Martin Tynan practices at 101 The City Drive South Uci Medical Center, Orange, CA 92868. The listed phone number is (714) 456-2986.

What is Martin Tynan's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Trauma, with taxonomy code 207XX0801X.

Is Martin Tynan enrolled in Medicare?

Yes. Martin Tynan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Martin Tynan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Martin Tynan reassigns Medicare benefits to Regents Of The University Of California (Orange, 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 Martin Tynan'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 Martin Tynan was last updated on March 3, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.