Karen Chen, M.D.
NPI 1043476716 · Internal Medicine Physician · Lutherville, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Chen, M.D. is a Internal Medicine Physician provider in Lutherville, MD (NPI 1043476716).
Provider details
- NPI number
- 1043476716
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 125053912 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 83 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 738 | 483 |
| Amlodipine Besylate | 441 | 289 |
| Losartan Potassium | 305 | 221 |
| Lisinopril | 262 | 199 |
| Levothyroxine Sodium | 224 | 154 |
| Metformin Hcl | 209 | 142 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-01
- Last updated
- 2021-06-21
- Certified
- 2021-06-21
Frequently asked questions
- What is Karen Chen's NPI number?
- Karen Chen's National Provider Identifier (NPI) is 1043476716, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Chen's specialty?
- Karen Chen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Chen located?
- Karen Chen's practice location on file with NPPES is 1447 York Rd, Lutherville, MD 21093-6017.
- What is Karen Chen's phone number?
- The practice phone number listed in the NPPES registry for Karen Chen is (410) 339-5500.
- Does Karen Chen accept Medicare?
- Karen Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Chen's NPI active?
- Yes — Karen Chen's NPI (1043476716) is active in the NPPES registry as of the last update on 2021-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.