Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Simon Fu Feng, MD

Addiction Medicine (Family Medicine) Physician in Greenwood, IN · enumerated 2005 · practices at Opioid Management LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649274317

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Registry record

Entity type Individual (Type 1)

Name Dr. Simon Fu Feng

Credential MD

Sex Male

Practice address 821 N State Road 135, Greenwood, IN, 46142

Phone (317) 560-4300

Fax (317) 530-9084

Enumeration date Jun 9, 2005

Last updated in NPPES Apr 21, 2026

Taxonomy & licenses

208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians · License 01045681A (IN) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 01045681A (IN) Secondary

207QA0401X Addiction Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 01045681 (IN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
200121760	Medicaid	IN	-
080098625	Other	IN	RAILROAD MEDICARE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Simon Feng?

Simon Feng is registered in NPPES with the primary taxonomy of Addiction Medicine (Family Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Samantha Seright Family Nurse Practitioner · Greenwood, IN NPI 1649271347 Ashley Sparks Family Nurse Practitioner · Greenwood, IN NPI 1114179900 Stacey Engel Primary Care Nurse Practitioner · Greenwood, IN NPI 1871900498 Jennifer Styer Family Nurse Practitioner · Greenwood, IN NPI 1104281344 Opioid Management LLC Pain Medicine Physician · Greenwood, IN NPI 1811351778 Sarah Godsave Family Nurse Practitioner · Greenwood, IN NPI 1104322395

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-21.