Mary Christian, FNP
NPI 1235230871 · Family Nurse Practitioner · Johnson City, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Christian, FNP is a Family Nurse Practitioner provider in Johnson City, TN (NPI 1235230871).
Provider details
- NPI number
- 1235230871
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 12269 (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 tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
289 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 107 | $62 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 88 | $93 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 49 | $135 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 45 | $89 |
Typical Medicare-allowed amounts for these services range $62–$135 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 48 | 48 |
| Prednisone | 28 | 28 |
| Pantoprazole Sodium | 25 | 25 |
| Amlodipine Besylate | 21 | 12 |
| Oxycodone Hcl | 16 | 16 |
| Cefuroxime Axetilbrand: Cefuroxime | 14 | 14 |
| Levothyroxine Sodium | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-26
- Last updated
- 2007-10-09
Frequently asked questions
- What is Mary Christian's NPI number?
- Mary Christian's National Provider Identifier (NPI) is 1235230871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Christian's specialty?
- Mary Christian is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Christian located?
- Mary Christian's practice location on file with NPPES is 119 Boone Ridge Dr, Johnson City, TN 37615-4998.
- What is Mary Christian's phone number?
- The practice phone number listed in the NPPES registry for Mary Christian is (423) 282-1480.
- Does Mary Christian accept Medicare?
- Mary Christian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Christian's NPI active?
- Yes — Mary Christian's NPI (1235230871) is active in the NPPES registry as of the last update on 2007-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.