JOSHUA IAN BERNSTEIN M.D.
NPI 1457317729
Internal Medicine - Nephrology in San Francisco, CA

Q: What is Joshua Bernstein's NPI number?

The NPI number for Joshua Bernstein is 1457317729. It was assigned to this individual provider in the NPPES registry on April 25, 2006.

Q: What is Joshua Bernstein's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Joshua Bernstein was last updated on July 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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 April 25, 2006PECOS Enrolled

97.22/100

CMS Quality Rating

2100 WEBSTER ST, SUITE 412, SAN FRANCISCO, CA 94115(415) 923-3815(415) 749-5713 Get Directions Write a Review

NPPES record last updated: July 18, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Joshua Ian Bernstein M.d. NPPES

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

JOSHUA IAN BERNSTEIN M.D. (NPI 1457317729) is an individual nephrology provider in San Francisco, California, licensed in California (A99752) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Vermont College Of Medicine (2001).

NPPES Registry Identity

NPI1457317729

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameJOSHUA IAN BERNSTEINCredential: M.D.

Location Address2100 WEBSTER ST, SUITE 412San Francisco, CA 94115-2373

Mailing Address2100 Webster St, Suite 405San Francisco, CA 94115-2373 · (415) 923-3456 · Fax (415) 923-3121

Phone(415) 923-3815

Fax(415) 749-5713

Sole ProprietorNo

Medical School CMSUniversity Of Vermont College Of MedicineGraduated 2001

Enumeration DateApril 25, 2006

Last NPPES UpdateJuly 18, 2013

✔ NPI 1457317729 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 · A99752

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.

2100 WEBSTER ST, San Francisco, CA 94115

Open in Google Maps ↗

Other Identifiers 3

Medicaid00A997520CA

Medicare UPINI13636CA

Medicare PIN00A997520CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joshua Ian Bernstein M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3375518590

PECOS Enrollment IDI20080430000320

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

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

Pacific Inpatient Medical Group

0.7 mi

Internal Medicine

1101 VAN NESS AVE
San Francisco, CA 94109

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

NPI 1447447248 (415) 531-9047

Regents Univ Of California Ucsf

2.4 mi

Internal Medicine

505 PARNASSUS AVE
San Francisco, CA 94143

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

NPI 1124439807 (415) 476-1000

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 12

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 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.

444 services149 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

103 services102 patients

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.

54 services40 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

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. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

44 services29 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

42 services42 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

31 services25 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

28 services28 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.

24 services18 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.

16 services13 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 canâ€™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.

15 services11 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

14 services14 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94115 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

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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.

97.22/100

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

Scored as part of a group practice

Quality

88.33

Promoting Interoperability

100

Improvement Activities

Cost

69.53

Referred Medical Equipment & Supplies CMS DME claims

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

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

1 supplier15 claims29 services$12.66 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.

JACK C ROSE

Psychiatry & Neurology (Neurology)

2100 WEBSTER ST, 4TH FLOOR
SAN FRANCISCO, CA 94115

San Francisco County (415) 600-5760

RUSSELL D WOO M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery)

2100 WEBSTER ST
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3004

DR. STAFFORD J DUHN DDS

Dentist (General Practice)

2100 WEBSTER ST, SUITE 325
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3034

DR. RICKI POLLYCOVE M.D., M.H.S.

Obstetrics & Gynecology (Gynecology)

2100 WEBSTER ST, STE. 508
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3390

OLGA HIDCHENKO NP

Clinical Nurse Specialist (Women's Health)

2100 WEBSTER ST, SUITE 319
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3123

DR. DAVID R MINOR MD

Internal Medicine (Medical Oncology)

2100 WEBSTER ST, #326
SAN FRANCISCO, CA 94115

San Francisco County (415) 885-8600

DR. PEDRO JOSE RUIZ M.D., PH.D.

Internal Medicine (Rheumatology)

2100 WEBSTER ST, SUITE 112
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3060

JONATHAN KAPLAN MD INC

Plastic Surgery

2100 WEBSTER ST, SUITE 429
SAN FRANCISCO, CA 94115

San Francisco County (415) 923-3005

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 Joshua Bernstein's NPI number?

The NPI number for Joshua Bernstein is 1457317729. It was assigned to this individual provider in the NPPES registry on April 25, 2006.

Where is Joshua Bernstein located?

Joshua Bernstein practices at 2100 Webster St Suite 412, San Francisco, CA 94115. The listed phone number is (415) 923-3815.

What is Joshua Bernstein's specialty?

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

Is Joshua Bernstein enrolled in Medicare?

Yes. Joshua Bernstein is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Joshua Bernstein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joshua Bernstein reassigns Medicare benefits to 2 organizations: Pacific Inpatient Medical Group (San Francisco, CA) and Regents Univ Of California Ucsf (San Francisco, 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 Joshua Bernstein'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 Joshua Bernstein was last updated on July 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.