Michael J. Hartman, MD
NPI 1437349495 · Orthopaedic Surgery of the Spine Physician · Munster, IN
Michael J. Hartman, MD is a Orthopaedic Surgery of the Spine Physician organization in Munster, IN (NPI 1437349495).
Provider details
- NPI number
- 1437349495
- Entity type
- Organization
- Primary specialty
- Orthopaedic Surgery of the Spine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Martin Hall, Owner(708) 799-1144
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
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
Other names (DBA / former)
- Doing business as
- Keystone Orthopedic Specialists
Registry dates
- Enumerated
- 2007-07-26
- Last updated
- 2007-07-26
Frequently asked questions
- What is Michael J. Hartman, MD's NPI number?
- Michael J. Hartman, MD's National Provider Identifier (NPI) is 1437349495, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Michael J. Hartman, MD?
- Michael J. Hartman, MD is classified in the NPPES registry as Orthopaedic Surgery of the Spine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael J. Hartman, MD located?
- Michael J. Hartman, MD's practice location on file with NPPES is 801 Macarthur Blvd, Munster, IN 46321-2915.
- What is Michael J. Hartman, MD's phone number?
- The practice phone number listed in the NPPES registry for Michael J. Hartman, MD is (219) 836-4123.
- Who is the authorized official for Michael J. Hartman, MD?
- The authorized official listed on Michael J. Hartman, MD's NPPES record is Martin Hall, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Michael J. Hartman, MD's NPI active?
- Yes — Michael J. Hartman, MD's NPI (1437349495) is active in the NPPES registry as of the last update on 2007-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.