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DR. NAN CHENG MD
NPI 1235795774
Psychiatry & Neurology - Neurology in Orange, CA

Active since May 09, 2019Opted out of Medicare · through May 27, 2028
78.58/100
CMS Quality Rating
101 THE CITY DR S, ORANGE, CA 92868(714) 456-8888 Get Directions Write a Review

NPPES record last updated: April 17, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 17, 2026, Jul 31, 2024, Jul 21, 2023 and 3 more (6 updates tracked since 2019).

About Dr. Nan Cheng Md NPPES

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

DR. NAN CHENG MD (NPI 1235795774) is an individual neurology provider in Orange, California, licensed in California (A182479) and active in the NPI registry since May 2019. She has opted out of Medicare through May 27, 2028 and remains eligible to order and refer and is a graduate of University Of Maryland School Of Medicine (2019).

NPPES Registry Identity

NPI1235795774
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameDR. NAN CHENGCredential: MD
Location Address101 THE CITY DR SOrange, CA 92868-3201
Mailing Address1301 N Broadway Ste 64833Los Angeles, CA 90012-1408 · (949) 431-6794 · Fax (949) 203-7241
Phone(714) 456-8888
Sole ProprietorNo
Medical School CMSUniversity Of Maryland School Of MedicineGraduated 2019
Enumeration DateMay 9, 2019
Last NPPES UpdateApril 17, 20266 updates tracked since enumeration
NPPES CertifiedApril 17, 2026
✔ NPI 1235795774 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in CA · A182479
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
101 THE CITY DR S, Orange, CA 92868
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Other Identifiers 1

MedicaidMDMD

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Nan Cheng Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from May 27, 2026 through May 27, 2028.

Opt-Out Effective DateMay 27, 2026
Opt-Out In Effect ThroughMay 27, 2028Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Areas of Expertise CMS Part B claims 6

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, onabotulinumtoxina, 1 unit J0585
Onabotulinumtoxina, also known as Botox, is a medication injected into muscles. It's used to treat various conditions by blocking nerve activity in the muscles, causing a temporary reduction in muscle activity. The units refer to the dosage.
6,400 services30 patients
Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face 64615
This procedure involves injecting a chemical into specific facial and neck muscles, causing temporary paralysis. This helps reduce muscle activity and can alleviate certain medical conditions. Both sides of the face are treated for a balanced result.
32 services30 patients
Injection of anesthetic agent and/or steroid into upper neck and back of head nerve 64405
This procedure involves injecting a mix of anesthetic and/or steroid into nerves in the upper neck and back of the head. It helps relieve pain by reducing inflammation and numbing the area. It's a common treatment for headaches and neck pain.
30 services24 patients
Injection of anesthetic agent and/or steroid into face nerve 64400
This procedure involves injecting a numbing agent and/or steroid into a facial nerve. It's typically done to relieve pain or inflammation. The injection targets specific nerves, helping to decrease discomfort and promote healing.
24 services16 patients
Injection of anesthetic agent and/or steroid into other nerve or branch 64450
This procedure involves injecting an anesthetic agent or steroid into a specific nerve or its branch. The goal is to relieve pain by reducing inflammation and numbing the area. It is commonly used for chronic pain management. The process is safe and usually quick.
21 services16 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.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

78.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality69.05
Promoting Interoperability100
Improvement Activities40
Cost59.56

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. ANKIT BHUPENDRA PATEL D.O.
Radiology (Diagnostic Radiology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-5113
DR. LAURA CATHERINE SKOCZYLAS MD
Obstetrics & Gynecology
101 THE CITY DR S, BUILDING 56, DEPARTMENT OF OB/GYN
ORANGE, CA 92868
Orange County (714) 456-8224
MICHAEL CHENG DO
Internal Medicine (Rheumatology)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7110
AESTHETIC AND PLASTIC SURGERY INSTITUTE
Plastic Surgery
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-2986
JOSEPH VILLARREAL M.D.
Emergency Medicine
101 THE CITY DR S, BUILDING 1A, ROOM 1009
ORANGE, CA 92868
Orange County (714) 456-5239
DEMI TRAN
Psychiatry & Neurology (Neurology)
101 THE CITY DR S, CITY TOWER, SUITE 400
ORANGE, CA 92868
Orange County (171) 456-6693
DR. ISABEL CARLTON CLARK M.D.
Surgery (Trauma Surgery)
101 THE CITY DR S
ORANGE, CA 92868
Orange County (714) 456-7890
DYLAN LUKATO
Emergency Medicine
101 THE CITY DR S
ORANGE, CA 92868
Orange County (415) 218-8041

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 Nan Cheng's NPI number?

The NPI number for Nan Cheng is 1235795774. It was assigned to this individual provider in the NPPES registry on May 9, 2019.

Where is Nan Cheng located?

Nan Cheng practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8888.

What is Nan Cheng's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Nan Cheng enrolled in Medicare?

No. Nan Cheng has opted out of Medicare through May 27, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Nan Cheng was last updated on April 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.