Nicholas Ma, MD
NPI 1891358784 · Psychiatry Physician · Chapel Hill, NC
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Ma, MD is a Psychiatry Physician provider in Chapel Hill, NC (NPI 1891358784).
Provider details
- NPI number
- 1891358784
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 250204 (NC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
151 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| 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 | 78 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 73 | $123 |
Typical Medicare-allowed amounts for these services range $16–$123 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Escitalopram Oxalate | 82 | 26 |
| Duloxetine Hcl | 76 | 19 |
| Sertraline Hcl | 64 | 19 |
| Lorazepam | 63 | 16 |
| Bupropion Hclbrand: Bupropion Xl | 53 | 16 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 52 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-04-17
- Last updated
- 2024-07-03
- Certified
- 2024-07-03
Frequently asked questions
- What is Nicholas Ma's NPI number?
- Nicholas Ma's National Provider Identifier (NPI) is 1891358784, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Ma's specialty?
- Nicholas Ma is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Ma located?
- Nicholas Ma's practice location on file with NPPES is 101 Manning Dr, Chapel Hill, NC 27514-4220.
- What is Nicholas Ma's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Ma is (984) 974-5217.
- Does Nicholas Ma accept Medicare?
- Nicholas Ma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Ma's NPI active?
- Yes — Nicholas Ma's NPI (1891358784) is active in the NPPES registry as of the last update on 2024-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.