Thomas Klein, M.D
NPI 1508886243 · Allergy & Immunology Physician · Havertown, PA
Thomas Klein, M.D is a Allergy & Immunology Physician provider in Havertown, PA (NPI 1508886243).
Provider details
- NPI number
- 1508886243
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- MD 029699E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-07-19
- Last updated
- 2014-02-07
Frequently asked questions
- What is Thomas Klein's NPI number?
- Thomas Klein's National Provider Identifier (NPI) is 1508886243, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Klein's specialty?
- Thomas Klein is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Klein located?
- Thomas Klein's practice location on file with NPPES is 400 W Township Line Rd, Havertown, PA 19083-5210.
- What is Thomas Klein's phone number?
- The practice phone number listed in the NPPES registry for Thomas Klein is (610) 789-1313.
- Is Thomas Klein's NPI active?
- Yes — Thomas Klein's NPI (1508886243) is active in the NPPES registry as of the last update on 2014-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.