ALFRED D. NELSON MD – NPI #1518329770
Internal Medicine

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Health Care Provider Taxonomy Code for Internal Medicine

ALFRED NELSON is a physician located in SAINT PETERS, MO. NPPES has assigned the NPI number 1518329770 to ALFRED NELSON on March 25, 2016. It is a Type-1 NPI, indicating this NPI number is associated with an individual. According to the NPI Registry, there are 4 additional location(s) assigned to this provider which are listed below. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RG0100X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Gastroenterology

The NPI profile was last updated on Sep 17, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for ALFRED NELSON below.

NPI Profile for
ALFRED D. NELSON

NPI Number
1518329770
Enumeration Date

(more than 10 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
ALFRED D. NELSON
Credentials
MD
Primary location
70 JUNGERMANN CIR STE 201
SAINT PETERS, MO 63376-1619
Phone: (636) 916-9615 Fax:
4 Other location(s):
4500 San Pablo Rd S
Jacksonville, FL 32224
Phone: (904) 953-2511
2520 N Orange Ave Ste 100
Orlando, FL 32804-4638
Phone: (407) 599-6460
1225 South Grand Boulevard
Saint Louis, MO 63195-4638
Phone: (314) 257-3760
9500 Euclid Ave
Cleveland, OH 44195-0001
Phone: (216) 444-2200
Mailing address
PO BOX 959354
SAINT LOUIS, MO 63195-0001
Phone: (636) 916-9615 Fax: (636) 916-9850
Sole Proprietor
Yes
Updated
Certification Date
Sep 17, 2025

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RG0100X
- Internal Medicine / Gastroenterology (Primary)		 MO 20240137136
390200000X
- Student in an Organized Health Care Education/Training Program
207R00000X
- Internal Medicine		 MO 20240137136

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Endpoint

Health Information Exchange (HEI)

HEI is the mobilization of health care information electronically across organizations within a region, community or hospital system. Endpoints provide a simple and secure way for participants to send authenticated, encrypted health information directly to known, trusted recipients over the internet such as primary care physicians, specialists, hospitals, labs, etc.

Endpoint
https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2
Endpoint type
FHIR URL
Endpoint Description
BJC
Content Type
CSV
Affiliation
N
Endpoint Location
70 JUNGERMANN CIR STE 201,
SAINT PETERS, MO 77025-1669

Additional Information

Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
ALFRED NELSON is affiliated with the following medical group(s):
  • HOSPITAL
    • ADVENTHEALTH ORLANDO
      601 E ROLLINS ST
      ORLANDO, FL 32803

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.