DANIEL F NIENDORFF M.D.
NPI 1700968732
Internal Medicine - Critical Care Medicine in Oak Ridge, TN

Active since October 19, 2006PECOS Enrolled
990 OAK RIDGE TPKE, OAK RIDGE, TN 37830(865) 835-1000 Get Directions Write a Review

NPPES record last updated: January 2, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 2, 2024, Dec 6, 2023 (2 updates tracked since 2023).

About Daniel F Niendorff M.d. NPPES

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

DANIEL F NIENDORFF M.D. (NPI 1700968732) is an individual critical care medicine provider in Oak Ridge, Tennessee, licensed in Tennessee (49379) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Johnson City.

NPPES Registry Identity

NPI1700968732
Entity TypeIndividualMale
Primary Taxonomy207RC0200X
Provider Legal NameDANIEL F NIENDORFFCredential: M.D.
Location Address990 OAK RIDGE TPKEOak Ridge, TN 37830-6976
Mailing Address1021 W Oakland Ave Ste 310Johnson City, TN 37604-2192 · (423) 302-6565
Sole ProprietorNo
Enumeration DateOctober 19, 2006
Last NPPES UpdateJanuary 2, 20242 updates tracked since enumeration
NPPES CertifiedJanuary 2, 2024
NPI 1700968732 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
License Licensed in TN · 49379
Definition
An internist who 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 ListedInternal MedicineTaxonomy 207R00000X · License 49379 (TN)
990 OAK RIDGE TPKE, Oak Ridge, TN 37830

Secondary Practice Location 1

Location 1400 N State Of Franklin Rd Rm 2746Johnson City, TN 37604-6035 · Phone (423) 431-2727

Other Identifiers 1

MedicaidQ000561TN

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Daniel F Niendorff M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 3

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.
85 services55 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.
32 services26 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.
15 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37830 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Dietitian, Registered
990 OAK RIDGE TPKE, FOOD AND NUTRITION SERVICES
OAK RIDGE, TN 37830
Emergency Medicine
990 OAK RIDGE TPKE
OAK RIDGE, TN 37830
Internal Medicine
990 OAK RIDGE TPKE
OAK RIDGE, TN 37830
Nurse Anesthetist, Certified Registered
990 OAK RIDGE TPKE
OAK RIDGE, TN 37830
Student in an Organized Health Care Education/Training Program
990 OAK RIDGE TPKE
OAK RIDGE, TN 37830
Dietitian, Registered
990 OAK RIDGE TPKE
OAK RIDGE, TN 37830
Radiology (Diagnostic Radiology)
990 OAK RIDGE TPKE
OAK RIDGE, TN 37830
Nurse Anesthetist, Certified Registered
990 OAK RIDGE TPKE
OAK RIDGE, TN 37830

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 Daniel Niendorff's NPI number?

The NPI number for Daniel Niendorff is 1700968732. It was assigned to this individual provider in the NPPES registry on October 19, 2006.

Where is Daniel Niendorff located?

Daniel Niendorff practices at 990 Oak Ridge Tpke, Oak Ridge, TN 37830. The listed phone number is (865) 835-1000.

What is Daniel Niendorff's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Daniel Niendorff enrolled in Medicare?

Yes. Daniel Niendorff is registered in the Medicare PECOS enrollment system.

What insurance does Daniel Niendorff accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health, Ambetter of Alabama and Ambetter of North Carolina and 1 other insurer list Daniel Niendorff 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.

When was this NPI record last updated?

The NPPES record for Daniel Niendorff was last updated on January 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.