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MARY BATHEN BISSELL M.D.
NPI 1821349622
Pediatrics in Mammoth Lakes, CA

Active since September 20, 2012PECOS Enrolled
85 SIERRA PARK ROAD, MAMMOTH LAKES, CA 93546(760) 924-4012 Get Directions Write a Review

NPPES record last updated: March 19, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 19, 2020, Jul 10, 2019 (2 updates tracked since 2019).

About Mary Bathen Bissell M.d. NPPES

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

MARY BATHEN BISSELL M.D. (NPI 1821349622) is an individual pediatrics provider in Mammoth Lakes, California, licensed in California (A132363) and active in the NPI registry since September 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821349622
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameMARY BATHEN BISSELLCredential: M.D.
Location Address85 SIERRA PARK ROADMammoth Lakes, CA 93546
Mailing AddressPo Box 660Mammoth Lakes, CA 93546
Phone(760) 924-4012
Sole ProprietorNo
Enumeration DateSeptember 20, 2012
Last NPPES UpdateMarch 19, 20202 updates tracked since enumeration
NPPES CertifiedMarch 19, 2020
✔ NPI 1821349622 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A132363
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
85 SIERRA PARK ROAD, Mammoth Lakes, CA 93546
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Bathen Bissell 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 Mary Bissell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern Mono Health Care District
Same address
Critical Access Hospital
85 SIERRA PARK RD
Mammoth Lakes, CA 93546
  • Reassigned Medicare billing, California enrollment
  • 83 clinicians in this Medicare group
NPI 1962444059 (760) 934-3311

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 93546 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
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
Most-billed visit code 99214
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 8

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

DR. RICHARD OWEN JOHNSON MD
Pediatrics
85 SIERRA PARK ROAD, SUITE A
MAMMOTH LAKES, CA 93546
Mono County (760) 924-4000
CANCER DETECTION PROGRAM
General Acute Care Hospital (Rural)
85 SIERRA PARK ROAD
MAMMOTH LAKES, CA 93546
Mono County (760) 934-3311
MR. GARY MYERS PT
Physical Therapist
85 SIERRA PARK ROAD
MAMMOTH LAKES, CA 93546
Mono County (760) 934-3311
SOUTHERN MONO HEALTH CARE DISTRICT
General Acute Care Hospital (Critical Access)
85 SIERRA PARK ROAD
MAMMOTH LAKES, CA 93546
Mono County (760) 872-6749
CANCER DETECTION PROGRAM
General Acute Care Hospital (Critical Access)
85 SIERRA PARK ROAD
MAMMOTH LAKES, CA 93546
Mono County (760) 934-3311
PACT OUT PATIENT
General Acute Care Hospital (Critical Access)
85 SIERRA PARK ROAD
MAMMOTH LAKES, CA 93546
Mono County (760) 934-3311
DR. NANCY THOMAS AKALIN PH.D.
Psychologist (Clinical)
85 SIERRA PARK ROAD, MAMMOTH HOSPITAL
MAMMOTH LAKES, CA 93546
Mono County (760) 924-4000
DEANNA S DEAN BSN, RN, CNOR, RNASC
Registered Nurse (Registered Nurse First Assistant)
85 SIERRA PARK ROAD, PO BOX 660
MAMMOTH LAKES, CA 93546
Mono County (760) 934-3311

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 Bissell's NPI number?

The NPI number for Mary Bissell is 1821349622. It was assigned to this individual provider in the NPPES registry on September 20, 2012.

Where is Mary Bissell located?

Mary Bissell practices at 85 Sierra Park Road, Mammoth Lakes, CA 93546. The listed phone number is (760) 924-4012.

What is Mary Bissell's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Mary Bissell enrolled in Medicare?

Yes. Mary Bissell is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Bissell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Bissell reassigns Medicare benefits to Southern Mono Health Care District (Mammoth Lakes, 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 Mary Bissell'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 Mary Bissell was last updated on March 19, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.