NASIM WIEGLEY M.D.
NPI 1992090815
Internal Medicine - Nephrology in Sacramento, CA

Active since June 20, 2011PECOS EnrolledAccepts Medicare Assignment
90.92/100
CMS Quality Rating
4150 V ST STE 3500, SACRAMENTO, CA 95817(916) 734-3014 Get Directions Write a Review

NPPES record last updated: November 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Nasim Wiegley M.d. NPPES

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

NASIM WIEGLEY M.D. (NPI 1992090815) is an individual nephrology provider in Sacramento, California, licensed in California (A134869) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2011).

NPPES Registry Identity

NPI1992090815
Entity TypeIndividualFemale
Primary Taxonomy207RN0300X
Provider Legal NameNASIM WIEGLEYCredential: M.D.
Location Address4150 V ST STE 3500Sacramento, CA 95817-1460
Mailing Address4150 V St Ste 3500Sacramento, CA 95817-1460 · (916) 734-3014
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateJune 20, 2011
Last NPPES UpdateNovember 17, 2025
NPPES CertifiedNovember 17, 2025
✔ NPI 1992090815 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in CA · A134869
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
4150 V ST STE 3500, Sacramento, CA 95817

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

Nasim Wiegley 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 ID5991923328
PECOS Enrollment IDI20150706002449
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

2

Medicare enrollment records show Nasim Wiegley reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pediatric Rheumatology
2521 STOCKTON BLVD
Sacramento, CA 95817
  • Reassigned Medicare billing, California enrollment
  • 2,570 clinicians in this Medicare group
Multi-Specialty
2221 STOCKTON BLVD
Sacramento, CA 95817
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Regents Of The University Of California
  • 918 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 10

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
243 services95 patients
Dialysis services, 1 physician visit per month (20 years or older) 90962
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can’t do their job. A physician visit once a month ensures your treatment is working effectively and adjusts it if necessary. This service is available for individuals aged 20 years and older.
145 services29 patients
Dialysis services, 2-3 physician visits per month (20 years or older) 90961
Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.
117 services28 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.
92 services58 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
86 services44 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.
80 services60 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95817 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
$137.20 typical visit price
range $60.44 – $180.85
Typical copayment $34.30 (range $15.11 – $45.21)
Most-billed visit code 99204
Established Patient
$105.95 typical visit price
range $19.88 – $148.15
Typical copayment $26.48 (range $4.97 – $37.03)
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.

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.

90.92/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality63.35
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers18 claims1,545 services$0.32 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers16 claims2,520 services$0.19 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
3 suppliers17 claims17 services$18.95 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
3 suppliers24 claims29 services$12.63 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Internal Medicine (Gastroenterology)
4150 V ST STE 3500
SACRAMENTO, CA 95817
Internal Medicine (Gastroenterology)
4150 V ST STE 3500
SACRAMENTO, CA 95817
Internal Medicine (Nephrology)
4150 V ST STE 3500
SACRAMENTO, CA 95817
Internal Medicine (Gastroenterology)
4150 V ST STE 3500
SACRAMENTO, CA 95817
Internal Medicine (Gastroenterology)
4150 V ST STE 3500
SACRAMENTO, CA 95817
Internal Medicine (Nephrology)
4150 V ST STE 3500
SACRAMENTO, CA 95817
Internal Medicine (Gastroenterology)
4150 V ST STE 3500
SACRAMENTO, CA 95817
Internal Medicine (Gastroenterology)
4150 V ST STE 3500
SACRAMENTO, CA 95817

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 Nasim Wiegley's NPI number?

The NPI number for Nasim Wiegley is 1992090815. It was assigned to this individual provider in the NPPES registry on June 20, 2011.

Where is Nasim Wiegley located?

Nasim Wiegley practices at 4150 V St Ste 3500, Sacramento, CA 95817. The listed phone number is (916) 734-3014.

What is Nasim Wiegley's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Nasim Wiegley enrolled in Medicare?

Yes. Nasim Wiegley 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 Nasim Wiegley's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nasim Wiegley reassigns Medicare benefits to 2 organizations: Regents Of The Univ Of Ca (Sacramento, CA) and Regents Of The University Of Ca (Sacramento, CA). 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 Nasim Wiegley'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 Nasim Wiegley was last updated on November 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.