DR. GREGG K NISHI M.D.
NPI 1972600344
Surgery in Beverly Hills, CA

Q: What is Gregg Nishi's NPI number?

The NPI number for Gregg Nishi is 1972600344. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Q: What is Gregg Nishi's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Gregg Nishi was last updated on July 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 September 20, 2006PECOS EnrolledAccepts Medicare Assignment

9033 WILSHIRE BLVD, SUITE 200, BEVERLY HILLS, CA 90211(310) 858-1242(310) 858-1172 Get Directions Write a Review

NPPES record last updated: July 21, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2023, Sep 7, 2022, Aug 23, 2022 (3 updates tracked since 2022).

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About Dr. Gregg K Nishi M.d. NPPES

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

DR. GREGG K NISHI M.D. (NPI 1972600344) is an individual surgery provider in Beverly Hills, California, licensed in California (A75418) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Carson Tahoe Regional Medical Center, and maintains a secondary practice location in Tucson.

NPPES Registry Identity

NPI1972600344

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. GREGG K NISHICredential: M.D.

Location Address9033 WILSHIRE BLVD, SUITE 200Beverly Hills, CA 90211-1837

Mailing Address9033 Wilshire Blvd, Suite 200Beverly Hills, CA 90211-1837 · (310) 858-1242 · Fax (310) 858-1172

Phone(310) 858-1242

Fax(310) 858-1172

Sole ProprietorNo

Medical School CMSGeorge Washington University School Of MedicineGraduated 1999

Enumeration DateSeptember 20, 2006

Last NPPES UpdateJuly 21, 20233 updates tracked since enumeration

NPPES CertifiedJuly 21, 2023

✔ NPI 1972600344 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

Licenses✔ Licensed in CA · A75418✔ Licensed in UT · 13342087-1205✔ Licensed in AZ · 63430

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 63430 (AZ)

9033 WILSHIRE BLVD, Beverly Hills, CA 90211

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Secondary Practice Location 1

Location 15301 E Grant RdTucson, AZ 85712-2805 · Phone (520) 324-5695

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. Gregg K Nishi 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 ID1355383092

PECOS Enrollment IDI20050524000335, I20260209003041

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 Gregg Nishi reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hp Intensivist Medical Group, Inc

5.9 mi

Critical Care Medicine

1300 N VERMONT AVE
Los Angeles, CA 90027

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

NPI 1578221453 (310) 321-0143

Usacs Integrated Acute Care Services Of Nevada Bagnoli P C

362 mi

Hospitalist

1600 MEDICAL PKWY
Carson City, NV 89703

Reassigned Medicare billing, Nevada enrollment
55 clinicians in this Medicare group

NPI 1063608701 (844) 474-4019

Northern Arizona Healthcare Corporation

392 mi

Family Medicine

1200 N. BEAVER STREET, ATTN: PAYER CREDENTIALING
Flagstaff, AZ 86001

Reassigned Medicare billing, Arizona enrollment
552 clinicians in this Medicare group

NPI 1669914552 (928) 773-2546

Ccmma Ca PC

500 mi

Critical Care Medicine

1100 BUTTE ST
Redding, CA 96001

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

NPI 1679293443 (530) 244-5400

Usacs Observation Medicine Services Of Colorado Inc.

633 mi

Critical Care Medicine

1010 THREE SPRINGS BLVD
Durango, CO 81301

Reassigned Medicare billing, Colorado enrollment
285 clinicians in this Medicare group

NPI 1659220663 (844) 474-4019

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 3

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.

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

417 services143 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

14 services14 patients

Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556

This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.

13 services13 patients

Hospital Affiliations CMS Care Compare

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

Carson Tahoe Regional Medical Center

Acute Care Hospitals · Carson City, NV

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number290019

Location1600 Medical ParkwayCarson City, NV 89703 · Carson City County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90211 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

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.

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.

JESSICA DUBELMAN PA-C

Physician Assistant (Medical)

9033 WILSHIRE BLVD, SUITE 200
BEVERLY HILLS, CA 90211

Los Angeles County (310) 858-2224

GABRIEL RUBANENKO, M.D. INC

Orthopaedic Surgery

9033 WILSHIRE BLVD, SUITE 401
BEVERLY HILLS, CA 90211

Los Angeles County (310) 274-5088

JACOB E TAUBER MD A PROFESSIONAL

Orthopaedic Surgery

9033 WILSHIRE BLVD, SUITE 401
BEVERLY HILLS, CA 90211

Los Angeles County (310) 273-1003

ERAJ BASSERI MD A PROFESSIONAL MEDICAL CORPORATION

Specialist

9033 WILSHIRE BLVD, # 200
BEVERLY HILLS, CA 90211

Los Angeles County (310) 858-1242

JACOB E TAUBER M.D.

Orthopaedic Surgery

9033 WILSHIRE BLVD, SUITE 401
BEVERLY HILLS, CA 90211

Los Angeles County (310) 273-1003

MEGAN A. SELIG PHYSICIAN ASSISTANT INC.

Physician Assistant (Surgical)

9033 WILSHIRE BLVD, SUITE 400
BEVERLY HILLS, CA 90211

Los Angeles County (310) 247-0466

MR. NELSON M FUENTEBELLA PA-C

Physician Assistant

9033 WILSHIRE BLVD, 401
BEVERLY HILLS, CA 90211

Los Angeles County (310) 247-0466

JAMES HOWARD PRITCHARD M.D.

Nuclear Medicine

9033 WILSHIRE BLVD
BEVERLY HILLS, CA 90211

Los Angeles County (310) 278-0656

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 Gregg Nishi's NPI number?

The NPI number for Gregg Nishi is 1972600344. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is Gregg Nishi located?

Gregg Nishi practices at 9033 Wilshire Blvd Suite 200, Beverly Hills, CA 90211. The listed phone number is (310) 858-1242.

What is Gregg Nishi's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Gregg Nishi enrolled in Medicare?

Yes. Gregg Nishi 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 Gregg Nishi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregg Nishi reassigns Medicare benefits to 5 organizations: Hp Intensivist Medical Group, Inc (Los Angeles, CA), Usacs Integrated Acute Care Services Of Nevada Bagnoli P C (Carson City, NV), Northern Arizona Healthcare Corporation (Flagstaff, AZ), Ccmma Ca PC (Redding, CA) and Usacs Observation Medicine Services Of Colorado Inc. (Durango, CO). 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 Gregg Nishi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Gregg Nishi affiliated with any hospitals?

According to CMS data, Gregg Nishi is affiliated with Carson Tahoe Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Gregg Nishi was last updated on July 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.