Nan Cheng, MD
NPI 1235795774 · Neurology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nan Cheng, MD is a Neurology Physician provider in Orange, CA (NPI 1235795774).
Provider details
- NPI number
- 1235795774
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A182479 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
142 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Injection of Chemical for Paralysis of Facial and Neck Nerve Muscles on Both Sides of Face64615 | 32 | $141 |
| Injection of Anesthetic Agent And/Or Steroid Into Upper Neck and Back of Head Nerve64405 | 30 | $62 |
| Injection of Anesthetic Agent And/Or Steroid Into Face Nerve64400 | 24 | $108 |
| Injection of Anesthetic Agent And/Or Steroid Into Other Nerve Or Branch64450 | 21 | $66 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 19 | $17 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Gabapentin | 34 |
| Sumatriptan Succinate | 19 |
| Topiramate | 18 |
| Memantine Hcl | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$213 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-05-09
- Last updated
- 2026-04-17
- Certified
- 2026-04-17
Frequently asked questions
- What is Nan Cheng's NPI number?
- Nan Cheng's National Provider Identifier (NPI) is 1235795774, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nan Cheng's specialty?
- Nan Cheng is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Nan Cheng located?
- Nan Cheng's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Nan Cheng's phone number?
- The practice phone number listed in the NPPES registry for Nan Cheng is (714) 456-8888.
- Does Nan Cheng accept Medicare?
- Nan Cheng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nan Cheng's NPI active?
- Yes — Nan Cheng's NPI (1235795774) is active in the NPPES registry as of the last update on 2026-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.