Green Spring Internal Medicine, LLC
NPI 1558310490 · Internal Medicine Physician · Lutherville, MD
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Green Spring Internal Medicine, LLC is a Internal Medicine Physician organization in Lutherville, MD (NPI 1558310490).
Provider details
- NPI number
- 1558310490
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Holly Dahlman, Member(410) 608-8964
- License
- D0054653 (MD)
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
20 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-09
- Last updated
- 2022-07-21
Frequently asked questions
- What is Green Spring Internal Medicine, LLC's NPI number?
- Green Spring Internal Medicine, LLC's National Provider Identifier (NPI) is 1558310490, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Green Spring Internal Medicine, LLC?
- Green Spring Internal Medicine, LLC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Green Spring Internal Medicine, LLC located?
- Green Spring Internal Medicine, LLC's practice location on file with NPPES is 2360 W Joppa Rd, Lutherville, MD 21093-4624.
- What is Green Spring Internal Medicine, LLC's phone number?
- The practice phone number listed in the NPPES registry for Green Spring Internal Medicine, LLC is (410) 583-2890.
- Does Green Spring Internal Medicine, LLC accept Medicare?
- Green Spring Internal Medicine, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Green Spring Internal Medicine, LLC?
- The authorized official listed on Green Spring Internal Medicine, LLC's NPPES record is Holly Dahlman, Member. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Green Spring Internal Medicine, LLC's NPI active?
- Yes — Green Spring Internal Medicine, LLC's NPI (1558310490) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.