NPPES file of Aug 9, 2026

Marcella M. Petzchen, NP

Adult Health Nurse Practitioner · Saint Louis, MO

Marcella M. Petzchen, NP is an adult health nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1255393716, issued on Apr 3, 2006. Check the license (Missouri 051062, as entered in NPPES) with the Missouri board that licenses this profession; 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
1255393716
Name
Marcella M. Petzchen
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
051062 MO
Self-reported in NPPES; status is on the state search
Practice location
3660 Vista Ave, Saint Louis, MO 63110
Phone
(314) 977-6100
Enumerated
Apr 3, 2006
Record last updated
Aug 4, 2025
Fax
(314) 977-6137
Medicare enrollment
Enrolled (PECOS I20100304000923); accepts 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 3660 Vista Ave

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

  1. Ali Al Balushi, M.D.Student in an Organized Health Care Education/Training Program1356750301
  2. Mary Barron, APRNFamily Nurse Practitioner1760600977
  3. Taylor BastinHospitalist Physician1205464492
  4. Shannon Brueggemann, MS, RDN, LDNRegistered Dietitian1679988810
  5. Kent Buxton, MDInternal Medicine Physician1740749746
  6. David Crafts, M.D.Specialist1891884870

Verify Marcella M. Petzchen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 051062
    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
Find the Missouri 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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16% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

1,070 Medicare Part D claims for 251 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D.

  1. Marcella Petzchen1,070
  2. Specialty average1,280

Most prescribed

  1. Amlodipine Besylate62 claims
  2. Atorvastatin Calcium61 claims
  3. Fluticasone Propionate43 claims
  4. Lisinopril39 claims
  5. Pantoprazole Sodium38 claims
  6. Tamsulosin Hcl36 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): 88.9 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.

  1. Qualityout of 100 · 30% of the final score84.7
  2. Costout of 100 · 30%45.0
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $341.65

4 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marcella Petzchen$341.65
  2. Specialty average$946.40

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

  1. Ssm Health Care GroupSaint Louis, MO

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

Marcella M. Petzchen among 794 adult health nurse practitioner records in Missouri

Marcella M. Petzchen, NP is one of 794 adult health nurse practitioner records with a practice address in Missouri. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 81% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1968 · median 2013 among the 399 with a school on file
  • Record last updated2025 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

332 adult health nurse practitioner records list a practice address in Saint Louis

They are 332 of the 27,605 NPPES records with a practice address in Saint Louis, and 794 adult health nurse practitioner records in Missouri.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Karen Brown, ANPSaint Louis, MO 631101104844620
  2. George Bryant, ANPSaint Louis, MO 631101073530598
  3. Jessica Doiron, ANPSaint Louis, MO 631101801898010
  4. Deborah Duckett, ANPSaint Louis, MO 631101417975830
  5. Faye Fielder, ANPSaint Louis, MO 631101962420687
  6. Iver Gandy, ANPSaint Louis, MO 631101417973736
  7. Rita Gardner, ANPSaint Louis, MO 631101154349835
  8. Susan Hays, ANPSaint Louis, MO 631101821016510

Common questions

What is Marcella M. Petzchen, NP's NPI number?

Marcella M. Petzchen, NP's National Provider Identifier (NPI) is 1255393716, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marcella M. Petzchen, NP located?

The NPPES record lists a practice address at 3660 Vista Ave, Saint Louis, MO, 63110. Phone: (314) 977-6100. Providers update this record themselves, so call before visiting.

How can I verify Marcella M. Petzchen, NP's license?

NPPES lists Missouri license number 051062, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Marcella M. Petzchen, NP prescribe under Medicare Part D?

In 2024, Marcella M. Petzchen, NP had 1,070 Medicare Part D claims for 251 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.

What is Marcella M. Petzchen, NP's MIPS final score?

The 2023 MIPS final score is 88.9 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.