DR. JOHN JACOB LONG DO
NPI 1063442648
Anesthesiology in O Fallon, MO
About Dr. John Jacob Long Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN JACOB LONG DO (NPI 1063442648) is an individual anesthesiology provider in O Fallon, Missouri, licensed in Missouri (2004020474) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Missouri Baptist Medical Center, and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. John Jacob Long Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show John Long reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63131
- Reassigned Medicare billing, Missouri enrollment
- 102 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 405 clinicians in this Medicare group
Charlotte, NC 28203
- Reassigned Medicare billing, North Carolina enrollment
- 223 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 2
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Missouri Baptist Medical Center
Acute Care Hospitals · Town And Country, MOCarolina East Medical Center
Acute Care Hospitals · New Bern, NCMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
O FALLON, MO 63368
O FALLON, MO 63368
O FALLON, MO 63368
O FALLON, MO 63368
O FALLON, MO 63368
O FALLON, MO 63368
O FALLON, MO 63368
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 John Long's NPI number?
The NPI number for John Long is 1063442648. It was assigned to this individual provider in the NPPES registry on July 3, 2006.
Where is John Long located?
John Long practices at 2 Progress Point Pkwy Dept Anesthesiology, O Fallon, MO 63368. The listed phone number is (800) 862-9980.
What is John Long's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Long enrolled in Medicare?
Yes. John Long is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Long's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Long reassigns Medicare benefits to 3 organizations: Missouri Baptist Medical Center (Saint Louis, MO), Washington University (Saint Louis, MO) and Southeast Anesthesiology Consultants, PLLC (Charlotte, NC). 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 John Long's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Long accept?
Health plans from Cigna Healthcare list John Long as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Long affiliated with any hospitals?
According to CMS data, John Long is affiliated with Missouri Baptist Medical Center and Carolina East Medical Center.
When was this NPI record last updated?
The NPPES record for John Long was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.
# Dr. John Jacob Long, DO · NPI 1063442648
Anesthesiology physician in O Fallon, Missouri. Individual provider, active in the CMS NPPES registry since July 3, 2006.
## Identity
- **NPI:** 1063442648 (Entity type: Individual)
- **Enumerated:** July 3, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 2004020474 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 2 PROGRESS POINT PKWY, DEPT ANESTHESIOLOGY, O Fallon, MO 63368-2205
- **Phone:** (800) 862-9980 · **Fax:** (314) 362-1185
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Missouri Baptist Medical Center (NPI 1609658905, Saint Louis, MO); Washington University (NPI 1528005642, Saint Louis, MO); Southeast Anesthesiology Consultants, PLLC (NPI 1538124201, Charlotte, NC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** April 17, 2025
- **Other identifiers:** Medicaid 209326909 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1063442648) · Data from the CMS NPPES public registry.