NANCI MARGUERITE MERCER MD
NPI 1306838776
Radiology - Diagnostic Radiology in Bakersfield, CA

Active since August 22, 2005PECOS EnrolledAccepts Medicare Assignment
500 OLD RIVER RD STE 200, BAKERSFIELD, CA 93311(661) 663-6429(661) 663-6041 Get Directions Write a Review

NPPES record last updated: November 5, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 5, 2024, Aug 14, 2023, Sep 11, 2020 and 1 more (4 updates tracked since 2019).

About Nanci Marguerite Mercer Md NPPES

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

NANCI MARGUERITE MERCER MD (NPI 1306838776) is an individual diagnostic radiology provider in Bakersfield, California, licensed in California (C168745) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS, is affiliated with Adventist Health Castle, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1306838776
Entity TypeIndividualFemale
Primary Taxonomy2085R0202X
Provider Legal NameNANCI MARGUERITE MERCERCredential: MD
Location Address500 OLD RIVER RD STE 200Bakersfield, CA 93311-9505
Mailing Address500 Old River Rd Ste 200Bakersfield, CA 93311-9505 · (661) 663-6429 · Fax (661) 663-6041
Fax(661) 663-6041
Sole ProprietorNo
Medical School CMSDrexel University College Of MedicineGraduated 1995
Enumeration DateAugust 22, 2005
Last NPPES UpdateNovember 5, 20244 updates tracked since enumeration
NPPES CertifiedNovember 5, 2024
✔ NPI 1306838776 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses✔ Licensed in CA · C168745✔ Licensed in MI · 4301066407✔ Licensed in OH · 35081106✔ Licensed in MA · 230237✔ Licensed in IL · 036104864✔ Licensed in MO · 2024000940
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
500 OLD RIVER RD STE 200, Bakersfield, CA 93311

Secondary Practice Locations 3

Location 13346 Lennon Road, Regional Medical ImagingFlint, MI 48507-1015 · Phone (810) 732-1919 · Fax (810) 732-3740
Location 2300 E Warwick DrAlma, MI 48801-1014 · Phone (412) 230-8200 · Fax (412) 202-8638
Location 311995 Singletree Ln Ste 500Eden Prairie, MN 55344-5349 · Phone (952) 595-1301 · Fax (612) 294-4903

Accepted Insurance

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

Nanci Marguerite Mercer 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 ID7911806427
PECOS Enrollment IDI20201002000853, I20210113001761, I20241130000126
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 Reassignments

23

Medicare enrollment records show Nanci Mercer reassigns Medicare billing to 23 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Community Health
500 OLD RIVER RD STE 200
Bakersfield, CA 93311
  • Reassigned Medicare billing, California enrollment
  • 263 clinicians in this Medicare group
Diagnostic Radiology
9330 STOCKDALE HWY, 100
Bakersfield, CA 93311
  • Reassigned Medicare billing, California enrollment
  • 252 clinicians in this Medicare group
Diagnostic Radiology
10474 W THUNDERBIRD BLVD STE 100
Sun City, AZ 85351
  • Reassigned Medicare billing, Arizona enrollment
  • 211 clinicians in this Medicare group
Diagnostic Radiology
3805 E BELL RD, STE 5500
Phoenix, AZ 85032
  • Reassigned Medicare billing, Michigan enrollment
  • 84 clinicians in this Medicare group
Vascular & Interventional Radiology
1400 S DOBSON RD
Mesa, AZ 85202
  • Reassigned Medicare billing, California enrollment
  • 94 clinicians in this Medicare group
Pediatrics
1920 BLACK LAKE BLVD SW
Olympia, WA 98512
  • Reassigned Medicare billing, Washington enrollment
  • 4,383 clinicians in this Medicare group
Critical Access
507 HOSPITAL WAY
Brewster, WA 98812
  • Reassigned Medicare billing, Washington enrollment
  • Also billed through NPI 1043363591 (Washington)
  • 238 clinicians in this Medicare group
Diagnostic Radiology
1201 W FRANK AVE
Lufkin, TX 75904
  • Reassigned Medicare billing, California enrollment
  • 9 clinicians in this Medicare group
Diagnostic Radiology
1401 ST JOSEPH PKWY
Houston, TX 77002
  • Reassigned Medicare billing, California enrollment
  • 244 clinicians in this Medicare group
Hospitalist
6000 HOSPITAL DR
Hannibal, MO 63401
  • Reassigned Medicare billing, Missouri and Illinois enrollments
  • Also billed through NPI 1114471737 (Illinois)
  • 192 clinicians in this Medicare group

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 59

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.

Injection, gadoterate meglumine, 0.1 ml A9575
Gadoterate meglumine is a contrast agent used in MRI scans to help visualize certain areas of your body more clearly. It's injected into your bloodstream, typically through a vein in your arm, and helps doctors get more detailed images.
13,050 services79 patients
Screening mammography 77067
Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.
2,637 services2,637 patients
Screening 3d breast mammography 77063
Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.
2,612 services2,612 patients
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967
Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.
1,235 services13 patients
X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
405 services390 patients
Complete ultrasound scan of 1 breast 76641
A complete ultrasound scan of one breast is a non-invasive imaging test that uses sound waves to create detailed images of the inside of your breast. It helps in detecting any abnormalities or changes, ensuring your breast health.
381 services374 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Adventist Health Castle

Acute Care Hospitals · Kailua, HI
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number120006
Location640 Ulukahiki StKailua, HI 96734 · Honolulu County
Emergency services Birthing friendly

Capital Medical Center

Acute Care Hospitals · Olympia, WA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number500139
Location3900 Capital Mall Dr SWOlympia, WA 98502 · Thurston County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93311 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
$91.09 typical visit price
range $59.26 – $178.09
Typical copayment $22.77 (range $14.81 – $44.52)
Most-billed visit code 99203
Established Patient
$73.67 typical visit price
range $19.34 – $145.64
Typical copayment $18.41 (range $4.83 – $36.41)
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.

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.

Reported Quality Measures

Radiology: Reminder System for Screening Mammograms
Percentage of patients undergoing a screening mammogram whose information is entered into a reminder system with a target due date for the next mammogram
100%439 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 7

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

Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
500 OLD RIVER RD STE 200
BAKERSFIELD, CA 93311
Obstetrics & Gynecology
500 OLD RIVER RD STE 200
BAKERSFIELD, CA 93311
Clinic/Center (Medical Specialty)
500 OLD RIVER RD STE 200
BAKERSFIELD, CA 93311
Clinic/Center (Community Health)
500 OLD RIVER RD STE 200
BAKERSFIELD, CA 93311
Nurse Practitioner (Family)
500 OLD RIVER RD STE 200
BAKERSFIELD, CA 93311
Physician Assistant
500 OLD RIVER RD STE 200
BAKERSFIELD, CA 93311
Nurse Practitioner
500 OLD RIVER RD STE 200
BAKERSFIELD, CA 93311

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 Nanci Mercer's NPI number?

The NPI number for Nanci Mercer is 1306838776. It was assigned to this individual provider in the NPPES registry on August 22, 2005.

Where is Nanci Mercer located?

Nanci Mercer practices at 500 Old River Rd Ste 200, Bakersfield, CA 93311. The listed phone number is (661) 663-6429.

What is Nanci Mercer's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Nanci Mercer enrolled in Medicare?

Yes. Nanci Mercer 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 organizations bill Medicare for Nanci Mercer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nanci Mercer reassigns Medicare benefits to 23 organizations: Pacific Central Coast Health Centers (Bakersfield, CA), Kern Radiology Medical Group, Inc (Bakersfield, CA), Banner Imaging Services LLC (Sun City, AZ), Radadvantage A Professional Corporation (Phoenix, AZ), Sonoran Radiology Ltd (Mesa, AZ) and 18 more organizations, listed in the Medicare section above. Each 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 Nanci Mercer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nanci Mercer accept?

Health plans from Blue Cross Blue Shield of Arizona, CareSource, Cigna HealthCare of Florida, Inc., Cigna Healthcare and Oscar Health Maintenance Organization of Florida and 2 other insurers list Nanci Mercer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Nanci Mercer affiliated with any hospitals?

According to CMS data, Nanci Mercer is affiliated with Adventist Health Castle and Capital Medical Center.

When was this NPI record last updated?

The NPPES record for Nanci Mercer was last updated on November 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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.