Nathan John Klingensmith, M.D.

Primary specialty

Surgical Critical Care PhysicianTaxonomy code 2086S0102X

License

MD477357 Issued in PA

Practice address

3400 Spruce Street
2 Dulles
Philadelphia, PA 19104-4206

Phone

(215) 662-7320

Fax

(215) 349-5917

NPI assigned

Apr 3, 2012

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in PA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Critical Care (Intensivists)

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Penn-Medical GroupGroup PAC ID 6204730955, 3,433 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Penn Presbyterian Medical Center Hospital, Philadelphia, PA, CCN 390223
• Hospital of Univ of Pennsylvania Hospital, Philadelphia, PA, CCN 390111
• Chester County Hospital Hospital, West Chester, PA, CCN 390179

Merit-based Incentive Payment System (MIPS)

Final score

84.91 of 100Reported as group

Quality

73.58

Promoting interoperability

100

Improvement activities

40

Cost

76.13

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• University of Penn-Medical Group

  • Gynecologic Oncology Physician
  • Philadelphia, PA
  • NPI 1235527342
  Medicare reassignment Care Compare group NPD
• University of Penn-Medical Group

  • Surgery Physician
  • Philadelphia, PA
  • NPI 1780072892
  NPD
• University of Penn-Medical Group

  • Surgical Oncology Physician
  • Philadelphia, PA
  • NPI 1871981985
  NPD
• Presbyterian Medical Center of the University of Pennsylvania Health S

  • General Acute Care Hospital
  • Philadelphia, PA
  • NPI 1245207521
  NPD (past)
• University of Penn - Medical Group

  • Cardiovascular Disease Physician
  • Philadelphia, PA
  • NPI 1093725145
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Chester County Hospital

  • General Acute Care Hospital
  • West Chester, PA
  • NPI 1356333579
  Care Compare affiliation
• Hospital of the University of PA

  • Ambulatory Fertility Facility
  • Phila, PA
  • NPI 1033262316

  Hospital

  Care Compare affiliation
• Presbyterian Medical Center of the University of Pennsylvania Health S

  • General Acute Care Hospital
  • Philadelphia, PA
  • NPI 1245207521
  Care Compare affiliation
• Trustees of the University of Pennsylvania

  • General Acute Care Hospital
  • Philadelphia, PA
  • NPI 1851370910
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1333411200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779753600000",
    "number": "1205192424",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3400 SPRUCE STREET",
            "address_2": "2 DULLES",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191044206",
            "telephone_number": "215-662-7320",
            "fax_number": "215-349-5917"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3400 SPRUCE STREET",
            "address_2": "2 DULLES",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191044206",
            "telephone_number": "215-662-7320",
            "fax_number": "215-349-5917"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KLINGENSMITH",
        "first_name": "NATHAN",
        "middle_name": "JOHN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-04-03",
        "last_updated": "2026-05-26",
        "certification_date": "2026-05-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "PA",
            "license": "MD477357",
            "primary": false
        },
        {
            "code": "2086S0127X",
            "taxonomy_group": "",
            "desc": "Surgery, Trauma Surgery",
            "state": "PA",
            "license": "MD477357",
            "primary": false
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "PA",
            "license": "MD477357",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kevin Richard Kline, MD
• Mary Kline, MD
• Rebecca Kline, M.A.
• Leslie Klinefelter, CRNP
• Lauren Klingensmith, MD
• Anne Waterman Klinger, MS,LPC,NCC
• Susan Louise Klingler, D.O.
• Adina Klingman, PHARMD
• Anthony Klingos, DO
• Nickolas E Klingos, DO

• Surgical Critical Care Physician in Philadelphia, PA
• Providers in Philadelphia, PA by specialty
• Surgical Critical Care Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 26, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.