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MARY DOLAN CRISHAM JANIK MD
NPI 1811330558
Obstetrics & Gynecology in San Leandro, CA

Active since April 11, 2013PECOS EnrolledAccepts Medicare Assignment
2500 MERCED ST FL 3, SAN LEANDRO, CA 94577(510) 454-1000 Get Directions Write a Review

NPPES record last updated: December 22, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 22, 2021, Oct 31, 2017, Feb 6, 2017 (3 updates tracked since 2017).

About Mary Dolan Crisham Janik Md NPPES

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

MARY DOLAN CRISHAM JANIK MD (NPI 1811330558) is an individual obstetrics & gynecology provider in San Leandro, California, licensed in California (A151340) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2013).

NPPES Registry Identity

NPI1811330558
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameMARY DOLAN CRISHAM JANIKCredential: MD
Location Address2500 MERCED ST FL 3San Leandro, CA 94577-4201
Mailing Address623 9th AveMenlo Park, CA 94025-1805 · (510) 203-7507
Phone(510) 454-1000
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2013
Enumeration DateApril 11, 2013
Last NPPES UpdateDecember 22, 20213 updates tracked since enumeration
✔ NPI 1811330558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · A151340
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
2500 MERCED ST FL 3, San Leandro, CA 94577
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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 and accepts Medicare assignment

Mary Dolan Crisham Janik Md 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 ID7113285081
PECOS Enrollment IDI20171222000890
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 Crisham Janik reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
15 mi
Internal Medicine
1190 VETERANS BLVD
Redwood City, CA 94063
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1639252604 (650) 299-2000

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 94577 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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.

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 Crisham Janik's NPI number?

The NPI number for Mary Crisham Janik is 1811330558. It was assigned to this individual provider in the NPPES registry on April 11, 2013.

Where is Mary Crisham Janik located?

Mary Crisham Janik practices at 2500 Merced St Fl 3, San Leandro, CA 94577. The listed phone number is (510) 454-1000.

What is Mary Crisham Janik's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Mary Crisham Janik enrolled in Medicare?

Yes. Mary Crisham Janik 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.

Which organization bills Medicare for Mary Crisham Janik's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Crisham Janik reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, 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 Crisham Janik'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 Crisham Janik was last updated on December 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.