DR. MARY E KEOHANE M.D.
NPI 1003922329
Specialist in Sacramento, CA

Q: What is Mary Keohane's NPI number?

The NPI number for Mary Keohane is 1003922329. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Q: What is Mary Keohane's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for Mary Keohane was last updated on March 6, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since August 21, 2006PECOS EnrolledAccepts Medicare Assignment

81.78/100

CMS Quality Rating

3301 C ST, SUITE 200E, SACRAMENTO, CA 95816(916) 447-6267(916) 447-0621 Get Directions Write a Review

NPPES record last updated: March 6, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Mary E Keohane M.d. NPPES

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

DR. MARY E KEOHANE M.D. (NPI 1003922329) is an individual specialist in Sacramento, California, licensed in California (C50535) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1983).

NPPES Registry Identity

NPI1003922329

Entity TypeIndividualFemale

Primary Taxonomy174400000X

Provider Legal NameDR. MARY E KEOHANECredential: M.D.

Location Address3301 C ST, SUITE 200ESacramento, CA 95816-3300

Mailing Address3301 C St, Suite 200eSacramento, CA 95816-3300 · (916) 447-6267 · Fax (916) 447-0621

Phone(916) 447-6267

Fax(916) 447-0621

Sole ProprietorNo

Medical School CMSOtherGraduated 1983

Enumeration DateAugust 21, 2006

Last NPPES UpdateMarch 6, 2008

✔ NPI 1003922329 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in CA · C50535

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

3301 C ST, Sacramento, CA 95816

Open in Google Maps ↗

Other Identifiers 4

Medicare UPIN00C505351CA

Medicaid00C505350CA

Medicare UPIN00C505350CA

Medicare ID-Type UnspecifiedF10083CA

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

Dr. Mary E Keohane M.d. 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 ID6800810623

PECOS Enrollment IDI20060119000775

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

Diagnostic Pathology Medical Group Inc

20 mi

Anatomic Pathology & Clinical Pathology

300 HOSPITAL DR
Vallejo, CA 94589

Reassigned Medicare billing, California enrollment
38 clinicians in this Medicare group

NPI 1992199160 (916) 447-6267

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 19

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.

Special stained specimen slides to examine tissue, each additional procedure 88341

Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.

541 services116 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

293 services191 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

211 services141 patients

Pathology examination of tissue using a microscope, moderately high complexity 88307

A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.

177 services87 patients

Special stained specimen slides to examine tissue, initial procedure 88342

157 services71 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

112 services35 patients

Preparation of tissue for examination by removing any calcium present 88311

This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.

89 services82 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

68 services48 patients

Pathology examination of tissue using a microscope, moderately low complexity 88304

A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.

62 services58 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

58 services29 patients

Pathology examination of tissue using a microscope, limited examination 88300

A pathology examination of tissue using a microscope is a procedure where a small sample of your tissue is observed under a microscope. This limited examination helps identify any abnormal cells or signs of disease, aiding in accurate diagnosis and treatment planning.

42 services40 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

39 services30 patients

Pathology examination of specimen during surgery, first tissue block 88331

A pathology examination during surgery involves the immediate analysis of a removed tissue sample. This helps the surgeon make decisions during your operation. The "first tissue block" refers to the initial sample examined. It's a vital step to ensure your health.

37 services18 patients

Cell examination of specimen, selective cellular enhancement technique 88112

Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.

32 services26 patients

Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method G0416

This procedure involves taking a small tissue sample from your gland located beneath your bladder. The sample is then examined under a microscope by a pathologist to check for any abnormalities or diseases. This is a standard method to ensure your well-being.

32 services32 patients

Pathology examination of tissue using a microscope, high complexity 88309

A high complexity pathology examination involves studying body tissue under a microscope to identify any abnormalities. This intricate process helps in diagnosing various conditions and deciding on the best treatment plan.

31 services28 patients

Microscopic genetic analysis of tumor, manual 88360

Microscopic genetic analysis of a tumor involves examining your tumor's genes under a microscope. This helps identify specific genetic changes in the tumor cells. This information can aid in diagnosing, predicting disease progression, and determining the most effective treatment options.

20 services16 patients

Pathology examination of tissue using a microscope, moderately low complexity 88304

19 services17 patients

Pathology examination of tissue using a microscope 88302

A pathology examination of tissue involves studying a small sample of your body's cells under a microscope. This helps identify any abnormalities or diseases, such as cancer. The process is crucial for accurate diagnosis and treatment planning.

13 services13 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.78/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

78.57

Improvement Activities

Other Providers at the Same Location NPPES 20

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

DR. CHAI SUE LEE MD

Dermatology

3301 C ST, STE. 1300
SACRAMENTO, CA 95816

Sacramento County (916) 734-6111

MS. SARAH RUTH WAGNER NP

Nurse Practitioner (Critical Care Medicine)

3301 C ST
SACRAMENTO, CA 95816

Sacramento County (916) 733-3390

OMA N AGBAI MD

Dermatology

3301 C ST
SACRAMENTO, CA 95816

Sacramento County (916) 734-6371

DR. KRISTEN VANDEWALKER M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

3301 C ST, SUITE 200-E
SACRAMENTO, CA 95816

Sacramento County (916) 447-6267

STEVEN W LIN M.D.

Student in an Organized Health Care Education/Training Program

3301 C ST, 1400
SACRAMENTO, CA 95816

Sacramento County (916) 734-1512

DR. MAXWELL FUNG MD

Dermatology (Dermatopathology)

3301 C ST, STE. 1300
SACRAMENTO, CA 95816

Sacramento County (916) 734-6111

DR. FORUM BHUPENDRA PATEL MD

Clinical Medical Laboratory

3301 C ST, #1400
SACRAMENTO, CA 95816

Sacramento County (916) 734-6657

DR. ROBERT W. GHISELLI M.D.

Specialist

3301 C ST, SUITE #200-E
SACRAMENTO, CA 95816

Sacramento County (916) 447-6267

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 Keohane's NPI number?

The NPI number for Mary Keohane is 1003922329. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Where is Mary Keohane located?

Mary Keohane practices at 3301 C St Suite 200E, Sacramento, CA 95816. The listed phone number is (916) 447-6267.

What is Mary Keohane's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Mary Keohane enrolled in Medicare?

Yes. Mary Keohane 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 Keohane's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Keohane reassigns Medicare benefits to Diagnostic Pathology Medical Group Inc (Vallejo, 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 Keohane'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 Keohane was last updated on March 6, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.