Annastasia Masso, - Medicare Nurse Anesthetist, Certified Registered in San Diego, CA

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Annastasia Masso, is a medicare enrolled "Nurse Anesthetist, Certified Registered" in San Diego, California. Her current practice location is 34800 Bob Wilson Dr, Bldg 1 Fl 4 - Anesthesia, San Diego, California. You can reach out to her office (for appointments etc.) via phone at (302) 345-7707.

Annastasia Masso is licensed to practice in Delaware (license number L6-0A10938) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1881374809.

Contact Information

Annastasia Masso,
34800 Bob Wilson Dr, Bldg 1 Fl 4 - Anesthesia,
San Diego, CA 92134
(302) 345-7707
Not Available

Map and Direction




Provider's Profile

Full NameAnnastasia Masso
GenderFemale
SpecialityNurse Anesthetist, Certified Registered
Location34800 Bob Wilson Dr, San Diego, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1881374809
  • Provider Enumeration Date: 07/24/2023
  • Last Update Date: 05/02/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 1850838400
  • Enrollment ID: I20240801000691

Medical Identifiers

Medical identifiers for Annastasia Masso such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1881374809NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367500000XNurse Anesthetist, Certified Registered L6-0A10938 (Delaware)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. Annastasia Masso allows following entities to bill medicare on her behalf.
Entity NameUnited Medical Doctors
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770559981
PECOS PAC ID: 2961305651
Enrollment ID: O20040129001069
Entity NameTemecula Ca Endoscopy Asc Lp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285863696
PECOS PAC ID: 4981645678
Enrollment ID: O20090730000041
Entity NameSan Gabriel Anesthesia Associates, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538424908
PECOS PAC ID: 3678720604
Enrollment ID: O20120828000023
Entity NameTemecula Ca United Surgery Center Lp
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1275951196
PECOS PAC ID: 9436465853
Enrollment ID: O20150831003140
Entity NameTrinity Anesthesia Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861078693
PECOS PAC ID: 3870901929
Enrollment ID: O20210409001631

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. Annastasia Masso 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
Annastasia Masso,
3825 Centre St Unit 31,
San Diego, CA 92103-3621

Ph: (302) 345-7707		Annastasia Masso,
34800 Bob Wilson Dr, Bldg 1 Fl 4 - Anesthesia,
San Diego, CA 92134

Ph: (302) 345-7707

Reviews and Comments


Nurse Anesthetist, Certified Registered Nurses in San Diego, CA

Ms. Elisabeth Noel Walker, CRNA
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 200 W Arbor Dr Mc 8201, Ucsd Medical Center, San Diego, CA 92103
Phone: 619-543-5720    Fax: 619-543-3183
Ardis L Taschner, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 4647 Zion Ave, San Diego, CA 92120
Phone: 619-528-5000    
Lena Grace Stephens,
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 34800 Bob Wilson Dr, San Diego, CA 92134
Phone: 619-532-8943    
Heidemarie Dreger, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 4405 Vandever Ave, San Diego, CA 92120
Phone: 619-528-5000    
Mr. Jason Wyatt Cole, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 200 W Arbor Dr, San Diego, CA 92103
Phone: 800-926-8273    
Mrs. Maryanne Elizabeth Baumgartner, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 34800 Bob Wilson Dr, San Diego, CA 92134
Phone: 619-532-8960    
Mr. Ryan L Nations, CRNA
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 200 W Arbor Dr, San Diego, CA 92103
Phone: 800-926-8273    Fax: 888-539-8781

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).

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