NPPES file of Aug 9, 2026

Cynthia Fernandez Shaffer, NP-C

Adult Medicine Physician · Ooltewah, TN

Cynthia Fernandez Shaffer, NP-C is an adult medicine physician with a practice address in Ooltewah, Tennessee, and NPI 1891798047, issued on May 23, 2005. Check the license (Tennessee APN5567, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891798047
Name
Cynthia Fernandez Shaffer
Credential
NP-C
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
APN5567 TN
Self-reported in NPPES; status is on the state search
Practice location
9309 Apison Pike, Ooltewah, TN 37363
Phone
(423) 778-9701
Enumerated
May 23, 2005
Record last updated
Feb 20, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(423) 778-9713
Medicare enrollment
Enrolled (PECOS I20071201000134); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9309 Apison Pike

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sandra Aaron, FNP-BCFamily Nurse Practitioner1801561964
  2. Hannah Bujak, MDFamily Medicine Physician1710090972
  3. Oliver Bujak, MDFamily Medicine Physician1063525228
  4. James Carsten, MDFamily Medicine Physician1194756023
  5. Heather Dunn, FNP-CFamily Nurse Practitioner1467947515
  6. Susan Gouge, DOFamily Medicine Physician1972537512

Verify Cynthia Fernandez Shaffer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license APN5567
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.8 times the Medicare Part D claims of the average adult medicine physician in 2024

11,543 Medicare Part D claims for 1,252 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 133 claims were for opioids.

  1. Cynthia Shaffer11,543
  2. Specialty average3,002

Most prescribed

  1. Azithromycin455 claims
  2. Levothyroxine Sodium411 claims
  3. Amlodipine Besylate330 claims
  4. Lisinopril319 claims
  5. Doxycycline Hyclate316 claims
  6. Losartan Potassium316 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 94.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.4
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $615.78

42 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 664 providers of this specialty with any payment received $1,405.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Cynthia Shaffer$615.78
  2. Specialty average$1,405.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Brainerd Medical Associates PCChattanooga, TN
  2. Memorial Health Partners Foundation, IncChattanooga, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Cynthia Fernandez Shaffer among 36 adult medicine physician records in Tennessee

Cynthia Fernandez Shaffer, NP-C is one of 36 adult medicine physician records with a practice address in Tennessee. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1998 · median 1998 among the 18 with a school on file
  • Record last updated2014 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Medicine Physician providers in Tennessee

There are 36 adult medicine physician records in Tennessee.

The 8 adult medicine physician records with the nearest ZIP codes

  1. Brandalyn Randolph, NPHixson, TN 373431154287456
  2. James Ness, M.D.Tellico Plains, TN 373851245361054
  3. Jung Park, MDWhitwell, TN 373971942291638
  4. William Shelton, MDChattanooga, TN 374031174013825
  5. Stoyan Grakov, M.D.Chattanooga, TN 374121730491317
  6. Joe Mazzolini, MDChattanooga, TN 374121811908718
  7. Paul Boerema, M.D.Cleveland, TN 373121396979233
  8. Allan Chastain, M.D.Cleveland, TN 373121508877341

Common questions

What is Cynthia Fernandez Shaffer, NP-C's NPI number?

Cynthia Fernandez Shaffer, NP-C's National Provider Identifier (NPI) is 1891798047, issued on May 23, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Cynthia Fernandez Shaffer, NP-C located?

The NPPES record lists a practice address at 9309 Apison Pike, Ooltewah, TN, 37363. Phone: (423) 778-9701. Providers update this record themselves, so call before visiting.

How can I verify Cynthia Fernandez Shaffer, NP-C's license?

NPPES lists Tennessee license number APN5567, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Cynthia Fernandez Shaffer, NP-C prescribe under Medicare Part D?

In 2024, Cynthia Fernandez Shaffer, NP-C had 11,543 Medicare Part D claims for 1,252 beneficiaries; the average among adult medicine physician prescribers was 3,002. Part D covers Medicare prescriptions only.

What is Cynthia Fernandez Shaffer, NP-C's MIPS final score?

The 2023 MIPS final score is 94.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.