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DR. CYNTHIA L POORTENGA M.D.
NPI 1811991631
Family Medicine in Kingsport, TN

Active since June 09, 2005Opted out of Medicare · through Oct 1, 2027
121 E RAVINE RD, STE 900, KINGSPORT, TN 37660(423) 230-4800(423) 230-4808 Get Directions Write a Review

NPPES record last updated: February 27, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Cynthia L Poortenga M.d. NPPES

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

DR. CYNTHIA L POORTENGA M.D. (NPI 1811991631) is an individual family medicine provider in Kingsport, Tennessee, licensed in Tennessee (MD0000017131) and active in the NPI registry since June 2005. She has opted out of Medicare through October 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1811991631
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. CYNTHIA L POORTENGACredential: M.D.
Location Address121 E RAVINE RD, STE 900Kingsport, TN 37660-3800
Mailing Address121 E Ravine Rd, Ste 900Kingsport, TN 37660-3800 · (423) 230-4800 · Fax (423) 230-4808
Phone(423) 230-4800
Fax(423) 230-4808
Sole ProprietorYes
Enumeration DateJune 9, 2005
Last NPPES UpdateFebruary 27, 2008
✔ NPI 1811991631 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in TN · MD0000017131
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
121 E RAVINE RD, Kingsport, TN 37660
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Other Identifiers 7

Other4054392TN · Bcbs Tn
Medicare UPINB58959TN
Other246269VA · Anthem Bcbs Va
Medicare ID-Type Unspecified3022833TN · Indv. Number
Medicaid3372564TN
Other5645956VA · Va Medicaid
Other830342546-01TN · John Deere Health Ins

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Cynthia L Poortenga M.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from October 1, 2015 through October 1, 2027.

Opt-Out Effective DateOctober 1, 2015
Opt-Out In Effect ThroughOctober 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37660 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
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
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 8

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

MARK H KADOWAKI MD
Surgery
121 E RAVINE RD, SUITE 200
KINGSPORT, TN 37660
Sullivan County (423) 408-7050
DONITA L PRESNELL R.PH
Pharmacist
121 E RAVINE RD
KINGSPORT, TN 37660
Sullivan County (423) 246-6166
DR. DAVID HAROLD FRANZUS M.D.
Internal Medicine
121 E RAVINE RD, SUITE 700
KINGSPORT, TN 37660
Sullivan County (423) 247-3717
DAVID H FRANZUS M D
Clinic/Center (Primary Care)
121 E RAVINE RD, SUITE 700
KINGSPORT, TN 37660
Sullivan County (423) 247-3717
DR. MARY CATHERINE MARCUM PHARM. D.
Pharmacist
121 E RAVINE RD, SUITE 100
KINGSPORT, TN 37660
Sullivan County (423) 246-6166
DR. COLTON N MARCUM PHARM. D.
Pharmacist
121 E RAVINE RD, SUITE 100
KINGSPORT, TN 37660
Sullivan County (423) 246-6166
CYNTHIA POORTENGA, MD PC
Clinic/Center (Primary Care)
121 E RAVINE RD, STE 900
KINGSPORT, TN 37660
Sullivan County (423) 230-4800
CEPHAS HIRAM SLOAN III PHARM.D.
Pharmacist
121 E RAVINE RD, STE. 100 (MARCUM'S)
KINGSPORT, TN 37660
Sullivan County (423) 246-6166

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 Cynthia Poortenga's NPI number?

The NPI number for Cynthia Poortenga is 1811991631. It was assigned to this individual provider in the NPPES registry on June 9, 2005.

Where is Cynthia Poortenga located?

Cynthia Poortenga practices at 121 E Ravine Rd Ste 900, Kingsport, TN 37660. The listed phone number is (423) 230-4800.

What is Cynthia Poortenga's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Cynthia Poortenga enrolled in Medicare?

No. Cynthia Poortenga has opted out of Medicare through October 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Cynthia Poortenga was last updated on February 27, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.