Isabel Hartig, ANP-C
Nurse Practitioner · Saint Louis, MO
Isabel Hartig, ANP-C is a nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1902279953, issued on Nov 12, 2015. Check the license (Missouri 2015039574, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isabel Hartig
- Credential
- ANP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 2015039574 MO
Self-reported in NPPES; status is on the state search - Practice location
- 522 N New Ballas RD, Saint Louis, MO 63141
- Phone
- (314) 567-5100
- Enumerated
- Nov 12, 2015
- Record last updated
- Nov 12, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (314) 567-3387
- Medicare enrollment
- Enrolled (PECOS I20160314000055); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,720 in Missouri → Look up another NPI →
Also registered at 522 N New Ballas RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Isabel Hartig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2015039574Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average nurse practitioner in 2024
2,407 Medicare Part D claims for 654 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydroxychloroquine Sulfate461 claims
- Methotrexate390 claims
- Prednisone335 claims
- Folic Acid159 claims
- Leflunomide133 claims
- Meloxicam79 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 practice group's MIPS final score for 2023 (Medicare payment program): 98.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,285.62
141 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Arthritis Consultants IncSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isabel Hartig among 1,720 nurse practitioner records in Missouri
Isabel Hartig, ANP-C is one of 1,720 nurse practitioner records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 40% of them.
- NPI issued2015 · 40% of these records are older, 55% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2015 · median 2017 among the 1,080 with a school on file
- Record last updated2015 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
437 nurse practitioner records list a practice address in Saint Louis
They are 437 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,720 nurse practitioner records in Missouri.
All 1,720 in Missouri → Every provider in Saint Louis → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
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- Kathy Erlichson, APRN BCSt Louis, MO 631411407031560
- Sarah Kessen, MSN, ANPSt Louis, MO 631411063466910
- Alishia Laporte, R.N.Saint Louis, MO 631411275689978
- Maxine Lueckenotte, FNPSaint Louis, MO 631411750318572
- Katherine Martin-Bredahl, FNPSaint Louis, MO 631411427388776
Common questions
What is Isabel Hartig, ANP-C's NPI number?
Isabel Hartig, ANP-C's National Provider Identifier (NPI) is 1902279953, issued on Nov 12, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Isabel Hartig, ANP-C located?
The NPPES record lists a practice address at 522 N New Ballas RD, Saint Louis, MO, 63141. Phone: (314) 567-5100. Providers update this record themselves, so call before visiting.
How can I verify Isabel Hartig, ANP-C's license?
NPPES lists Missouri license number 2015039574, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Isabel Hartig, ANP-C prescribe under Medicare Part D?
In 2024, Isabel Hartig, ANP-C had 2,407 Medicare Part D claims for 654 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Isabel Hartig, ANP-C's MIPS final score?
The 2023 MIPS final score is 98.5 of 100, reported for the practice group. 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.