Mary Gilliland, FNP-C
NPI 1700273828 · Family Nurse Practitioner · Chattanooga, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Gilliland, FNP-C is a Family Nurse Practitioner provider in Chattanooga, TN (NPI 1700273828).
Provider details
- NPI number
- 1700273828
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- APN0000019815 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,954 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 731 | $97 |
| Testing for Presence of Drug, By Chemistry Analyzers80307 | 269 | $60 |
| Drug Test(s), Definitive, Utilizing (1) Drug Identification Methods Able to Identify Individual Drugs and Distinguish Between Structural Isomers (but Not Necessarily Stereoisomers), Including, But Not Limited to Gc/Ms (any Type, Single Or Tandem) and Lc/MsG0482 | 167 | $193 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 135 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 134 | $10 |
| Drug Test(s), Definitive, Utilizing (1) Drug Identification Methods Able to Identify Individual Drugs and Distinguish Between Structural Isomers (but Not Necessarily Stereoisomers), Including, But Not Limited to Gc/Ms (any Type, Single Or Tandem) and Lc/Ms |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 1,591 | 284 |
| Gabapentin | 862 | 181 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 792 | 172 |
| Tizanidine Hcl | 672 | 136 |
| Oxycodone Hcl | 558 | 112 |
| Pregabalin | 406 | 93 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$815 across 50 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-16
- Last updated
- 2016-03-15
Frequently asked questions
- What is Mary Gilliland's NPI number?
- Mary Gilliland's National Provider Identifier (NPI) is 1700273828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Gilliland's specialty?
- Mary Gilliland is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Gilliland located?
- Mary Gilliland's practice location on file with NPPES is 2000 Stein Dr, Chattanooga, TN 37421-7217.
- What is Mary Gilliland's phone number?
- The practice phone number listed in the NPPES registry for Mary Gilliland is (423) 648-8480.
- Does Mary Gilliland accept Medicare?
- Mary Gilliland is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Gilliland's NPI active?
- Yes — Mary Gilliland's NPI (1700273828) is active in the NPPES registry as of the last update on 2016-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.