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NATHAN JOHN KLINGENSMITH M.D.
NPI 1205192424
Surgery - Surgical Critical Care in Philadelphia, PA

Active since April 03, 2012PECOS EnrolledAccepts Medicare Assignment
85.48/100
CMS Quality Rating
3400 SPRUCE STREET, 2 DULLES, PHILADELPHIA, PA 19104(215) 662-7320(215) 349-5917 Get Directions Write a Review

NPPES record last updated: May 26, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 26, 2026, May 22, 2026, Jan 21, 2023 and 4 more (7 updates tracked since 2016).

About Nathan John Klingensmith M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NATHAN JOHN KLINGENSMITH M.D. (NPI 1205192424) is an individual surgical critical care provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD477357) and active in the NPI registry since April 2012. He is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1205192424
Entity TypeIndividualMale
Primary Taxonomy2086S0102X
Provider Legal NameNATHAN JOHN KLINGENSMITHCredential: M.D.
Location Address3400 SPRUCE STREET, 2 DULLESPhiladelphia, PA 19104-4206
Mailing Address3400 Spruce Street, 2 DullesPhiladelphia, PA 19104-4206 · (215) 662-7320 · Fax (215) 349-5917
Phone(215) 662-7320
Fax(215) 349-5917
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateApril 3, 2012
Last NPPES UpdateMay 26, 20267 updates tracked since enumeration
NPPES CertifiedMay 26, 2026
✔ NPI 1205192424 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Surgical Critical CareAllopathic & Osteopathic Physicians
Taxonomy Code2086S0102X
License✔ Licensed in PA · MD477357
Definition
A surgeon with expertise in the management of the critically ill and postoperative patient, particularly the trauma victim, who specializes in critical care medicine diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
Also ListedSurgeryTaxonomy 208600000X · License MD477357 (PA)
Also ListedSurgery · Trauma SurgeryTaxonomy 2086S0127X · License MD477357 (PA)
3400 SPRUCE STREET, Philadelphia, PA 19104
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nathan John Klingensmith M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7113212002
PECOS Enrollment IDI20230119001423
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
73 services31 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
36 services22 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
35 services25 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
24 services24 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hospital Of Univ Of Pennsylvania

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390111
Location34th & Spruce StsPhiladelphia, PA 19104 · Philadelphia County
Emergency services Birthing friendly

Penn Presbyterian Medical Center

Acute Care Hospitals · Philadelphia, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390223
Location51 North 39th StreetPhiladelphia, PA 19104 · Philadelphia County
Emergency services

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.48/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.6
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SARAH KUMAR M.D.
Anesthesiology (Critical Care Medicine)
3400 SPRUCE STREET
PHILADELPHIA, PA 19104
Philadelphia County (215) 349-8310
RYAN MCCLINTOCK MD
Radiology (Diagnostic Radiology)
3400 SPRUCE STREET
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-3000
ADRIAN W ONG MD
Surgery (Surgical Critical Care)
3400 SPRUCE STREET, 2 DULLES
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-7320
MATHEW N BESHARA MD
Obstetrics & Gynecology
3400 SPRUCE STREET, 5 PENN TOWER
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-6035
JILL E LANGER MD
Radiology (Diagnostic Radiology)
3400 SPRUCE STREET, GROUND FLOOR DULLES
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-7012
BERNADETTE C WHEELER MD
Obstetrics & Gynecology
3400 SPRUCE STREET, 1 WEST GATES
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-2730
EDWARD T DICKINSON MD
Emergency Medicine
3400 SPRUCE STREET, GROUND SILVERSTEIN BLDG
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-6698
WENDY RACHEL GALPERN MD, PHD
Psychiatry & Neurology (Neurology)
3400 SPRUCE STREET
PHILADELPHIA, PA 19104
Philadelphia County (215) 662-2219

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nathan Klingensmith's NPI number?

The NPI number for Nathan Klingensmith is 1205192424. It was assigned to this individual provider in the NPPES registry on April 3, 2012.

Where is Nathan Klingensmith located?

Nathan Klingensmith practices at 3400 Spruce Street 2 Dulles, Philadelphia, PA 19104. The listed phone number is (215) 662-7320.

What is Nathan Klingensmith's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.

Is Nathan Klingensmith enrolled in Medicare?

Yes. Nathan Klingensmith is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Nathan Klingensmith accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Nathan Klingensmith as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Nathan Klingensmith affiliated with any hospitals?

According to CMS data, Nathan Klingensmith is affiliated with Hospital Of Univ Of Pennsylvania and Penn Presbyterian Medical Center.

When was this NPI record last updated?

The NPPES record for Nathan Klingensmith was last updated on May 26, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.