What is Julia Ma's NPI number?

Julia Ma's National Provider Identifier (NPI) is 1912839143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Julia Ma's specialty?

Julia Ma is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Julia Ma located?

Julia Ma's practice location on file with NPPES is 1001 S George St, York, PA 17403-3676.

What is Julia Ma's phone number?

The practice phone number listed in the NPPES registry for Julia Ma is (717) 851-2311.

Is Julia Ma's NPI active?

Yes — Julia Ma's NPI (1912839143) is active in the NPPES registry as of the last update on 2026-06-02.

IndividualActive

Julia Ma, MD

NPI 1912839143 · Emergency Medicine Physician · York, PA

Julia Ma, MD is a Emergency Medicine Physician provider in York, PA (NPI 1912839143).

Provider details

NPI number: 1912839143
Entity type: Individual
Primary specialty: Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: MT237099 (PA)

Specialties & taxonomies

Emergency Medicine PhysicianPrimary207P00000XLicense MT237099 (PA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(52/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

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.

Practice location

1001 S George St

York, PA 17403-3676

Phone: (717) 851-2311

Street-level locationGet directions

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Mailing address