MONIKA APLYN M.D.
NPI 1336195247
Internal Medicine in Saint Louis, MO
About Monika Aplyn M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MONIKA APLYN M.D. (NPI 1336195247) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2001014588) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Monika Aplyn M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
6Medicare enrollment records show Monika Aplyn reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Sacramento, CA 95816
- Reassigned Medicare billing, California enrollment
- 4,479 clinicians in this Medicare group
Concord, CA 94520
- Reassigned Medicare billing, California enrollment
- 13 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 clinicians in this Medicare group
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 28 clinicians in this Medicare group
Santa Rosa, CA 95404
- Reassigned Medicare billing, California enrollment
- 140 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63117 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63117
SAINT LOUIS, MO 63117
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Monika Aplyn's NPI number?
The NPI number for Monika Aplyn is 1336195247. It was assigned to this individual provider in the NPPES registry on May 25, 2006.
Where is Monika Aplyn located?
Monika Aplyn practices at 6420 Clayton Rd, Saint Louis, MO 63117. The listed phone number is (314) 768-8000.
What is Monika Aplyn's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Monika Aplyn enrolled in Medicare?
Yes. Monika Aplyn is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Monika Aplyn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Monika Aplyn reassigns Medicare benefits to 6 organizations: Inpatient Specialists Of California, PC (San Bernardino, CA), Sutter Bay Medical Foundation (Sacramento, CA), Diablo Pulmonary Medical Group, Inc (Concord, CA), John Muir Trauma Physicians Billing Service (Walnut Creek, CA), San Francisco Critical Care Med Group Inc (San Francisco, CA) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Monika Aplyn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Monika Aplyn was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Monika Aplyn, M.D. · NPI 1336195247
Internal Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since May 25, 2006.
## Identity
- **NPI:** 1336195247 (Entity type: Individual)
- **Enumerated:** May 25, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 2001014588 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 6420 CLAYTON RD, Saint Louis, MO 63117-1811
- **Phone:** (314) 768-8000 · **Fax:** (314) 768-8011
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA); Sutter Bay Medical Foundation (NPI 1003267196, Sacramento, CA); Diablo Pulmonary Medical Group, Inc (NPI 1265443303, Concord, CA); John Muir Trauma Physicians Billing Service (NPI 1962551861, Walnut Creek, CA); San Francisco Critical Care Med Group Inc (NPI 1215000211, San Francisco, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** September 29, 2026
- **Other identifiers:** Medicaid 1336195247 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1336195247) · Data from the CMS NPPES public registry.