Isabel Hartig, ANP-C
NPI 1902279953 · Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isabel Hartig, ANP-C is a Nurse Practitioner provider in Saint Louis, MO (NPI 1902279953).
Provider details
- NPI number
- 1902279953
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ANP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 2015039574 (MO)
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
10 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
1,034 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 | 592 | $105 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 344 | $14 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 74 | $76 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 24 | $50 |
Typical Medicare-allowed amounts for these services range $14–$105 (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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 461 | 144 |
| Methotrexate Sodiumbrand: Methotrexate | 390 | 144 |
| Prednisone | 335 | 122 |
| Folic Acid | 159 | 57 |
| Leflunomide | 133 | 54 |
| Meloxicam | 79 | 34 |
| Gabapentin | 78 | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,286 across 141 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
- 2015-11-12
- Last updated
- 2015-11-12
Frequently asked questions
- What is Isabel Hartig's NPI number?
- Isabel Hartig's National Provider Identifier (NPI) is 1902279953, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isabel Hartig's specialty?
- Isabel Hartig is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Isabel Hartig located?
- Isabel Hartig's practice location on file with NPPES is 522 N New Ballas Rd, Saint Louis, MO 63141-6857.
- What is Isabel Hartig's phone number?
- The practice phone number listed in the NPPES registry for Isabel Hartig is (314) 567-5100.
- Does Isabel Hartig accept Medicare?
- Isabel Hartig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isabel Hartig's NPI active?
- Yes — Isabel Hartig's NPI (1902279953) is active in the NPPES registry as of the last update on 2015-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.