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DR. MARY ANN BOS DO
NPI 1780768879
Orthopaedic Surgery - Hand Surgery in Downey, CA

Active since October 25, 2006PECOS EnrolledAccepts Medicare Assignment
8555 E FLORENCE AVE, DOWNEY, CA 90240(562) 923-9351(562) 869-6294 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Mary Ann Bos Do NPPES

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

DR. MARY ANN BOS DO (NPI 1780768879) is an individual hand surgery provider in Downey, California, licensed in California (20A7009) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (1991).

NPPES Registry Identity

NPI1780768879
Entity TypeIndividualFemale
Primary Taxonomy207XS0106X
Provider Legal NameDR. MARY ANN BOSCredential: DO
Location Address8555 E FLORENCE AVEDowney, CA 90240
Mailing Address8555 E Florence AveDowney, CA 90240 · (562) 923-9351 · Fax (562) 869-6294
Phone(562) 923-9351
Fax(562) 869-6294
Sole ProprietorNo
Medical School CMSMidwestern University, Chicago College Of Osteopathic MedGraduated 1991
Enumeration DateOctober 25, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1780768879 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic Surgery · Hand SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207XS0106X
License✔ Licensed in CA · 20A7009
Definition
An orthopaedic surgeon trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.
8555 E FLORENCE AVE, Downey, CA 90240
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mary Ann Bos Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3072763887
PECOS Enrollment IDI20211214001793
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.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
58 services41 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
41 services33 patients
X-ray of hand, minimum of 3 views 73130
An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.
40 services29 patients
Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
38 services31 patients
Aspiration and/or injection of fluid from small joint 20600
This procedure involves inserting a thin needle into a small joint to remove (aspirate) or inject fluid. It can help diagnose conditions, relieve discomfort, or administer medication directly into the joint. It's generally safe with minimal discomfort.
23 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90240 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
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.

DR. FRANK BURNARD GIACOBETTI MD
Orthopaedic Surgery
8555 E FLORENCE AVE
DOWNEY, CA 90240
Los Angeles County (562) 923-9351

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 Mary Bos's NPI number?

The NPI number for Mary Bos is 1780768879. It was assigned to this individual provider in the NPPES registry on October 25, 2006.

Where is Mary Bos located?

Mary Bos practices at 8555 E Florence Ave, Downey, CA 90240. The listed phone number is (562) 923-9351.

What is Mary Bos's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Hand Surgery, with taxonomy code 207XS0106X.

Is Mary Bos enrolled in Medicare?

Yes. Mary Bos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Mary Bos 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.