Douglas Martin Siegmund, FNP-C - Medicare Nurse Practitioner in Santa Ana, CA

  1. Home
  2. Nurse Practitioner
  3. CA
  4. Santa Ana
Douglas Martin Siegmund, FNP-C is a medicare enrolled "Nurse Practitioner - Family" in Santa Ana, California. His current practice location is 2010 E 1st St Ste 100, Santa Ana, California. You can reach out to his office (for appointments etc.) via phone at (714) 556-7246.

Douglas Martin Siegmund is licensed to practice in California (license number 95025832) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1437837879.

Contact Information

Douglas Martin Siegmund, FNP-C
2010 E 1st St Ste 100,
Santa Ana, CA 92705-4086
(714) 556-7246
Not Available

Map and Direction




Provider's Profile

Full NameDouglas Martin Siegmund
GenderMale
SpecialityNurse Practitioner - Family
Location2010 E 1st St Ste 100, Santa Ana, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1437837879
  • Provider Enumeration Date: 07/06/2023
  • Last Update Date: 05/07/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5092242420
  • Enrollment ID: I20241226001554

Medical Identifiers

Medical identifiers for Douglas Martin Siegmund such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1437837879NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
163W00000XRegistered Nurse 95128967 (California)Secondary
363LF0000XNurse Practitioner - Family 95025832 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Douglas Martin Siegmund allows following entities to bill medicare on his behalf.
Entity NameCoastal Family Medicine Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275584120
PECOS PAC ID: 4587678065
Enrollment ID: O20090124000106

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Douglas Martin Siegmund is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Douglas Martin Siegmund, FNP-C
2915 N. Cottonwood St. Unit 18,
Orange, CA 92865

Ph: (714) 342-8684		Douglas Martin Siegmund, FNP-C
2010 E 1st St Ste 100,
Santa Ana, CA 92705-4086

Ph: (714) 556-7246

Reviews and Comments


Nurse Practitioner Nurses in Santa Ana, CA

Mr. Gerardo M De Jesus, NP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 550 N Flower St, Santa Ana, CA 92703
Phone: 714-647-4170    
Miss Sonia Sedano, FNP-C
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 1400 N Main St, Santa Ana, CA 92701
Phone: 888-499-9303    
Dr. Vivianmary Udoka Osunwoke, DNP/FNP, MHA, BSN,RN
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 2414 S Fairview St, Santa Ana, CA 92704
Phone: 714-641-0121    
Anh Huynh Phan,
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 1406 W 10th St, Santa Ana, CA 92703
Phone: 714-854-4173    
Melissa A Medellin, FNP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 1002 N Fairview St, Santa Ana, CA 92703
Phone: 714-835-8501    
Marlowe Klein, NP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 517 N Main St, Santa Ana, CA 92701
Phone: 714-647-0401    
Elizabeth Branson,
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 2010 E 1st St # 100, Santa Ana, CA 92705
Phone: 909-800-3532    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.