What is Constance Chen's NPI number?

Constance Chen's National Provider Identifier (NPI) is 1437909884, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Constance Chen's specialty?

Constance Chen is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).

Where is Constance Chen located?

Constance Chen's practice location on file with NPPES is 9000 Franklin Square Dr, Baltimore, MD 21237-3901.

What is Constance Chen's phone number?

The practice phone number listed in the NPPES registry for Constance Chen is (443) 777-2000.

Does Constance Chen accept Medicare?

Constance Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Constance Chen's NPI active?

Yes — Constance Chen's NPI (1437909884) is active in the NPPES registry as of the last update on 2024-03-26.

IndividualActiveAccepts Medicare

Constance Chen, MD

NPI 1437909884 · Student in an Organized Health Care Education/Training Program · Baltimore, MD

Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Constance Chen, MD is a Student in an Organized Health Care Education/Training Program provider in Baltimore, MD (NPI 1437909884).

Provider details

NPI number: 1437909884
Entity type: Individual
Primary specialty: Student in an Organized Health Care Education/Training ProgramStudent, Health Care
Credential: MD
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Student in an Organized Health Care Education/Training ProgramPrimary390200000X
Student, Health Care

Profile Score

Established profile(50/100 index)

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

Registry tenure38% of score
2 yrs in NPPES registry
Profile completeness38% of score
83% 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.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.

Drug	Part D claims (2024)
Amlodipine Besylate	12
Atorvastatin Calcium	11
Lisinopril	11

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.

Practice location

9000 Franklin Square Dr

Baltimore, MD 21237-3901

Phone: (443) 777-2000

Fax: (443) 777-8489

Street-level locationGet directions

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Mailing address