Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Greesh John, M.D

Pain Medicine (Anesthesiology) Physician in Easton, MD · enumerated 2010.

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

National Provider Identifier

1922316272

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Registry record

Entity type Individual (Type 1)

Name Dr. Greesh John

Credential M.D

Sex Male

Practice address 598 Cynwood Dr Ste 105, Easton, MD, 21601

Phone (855) 527-7246

Fax (866) 229-5063

Enumeration date Sep 21, 2010

Last updated in NPPES Dec 1, 2021

Taxonomy & licenses

208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License D0077390 (MD) Secondary

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License D0077390 (MD) Primary

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

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Greesh John?

Greesh John is registered in NPPES with the primary taxonomy of Pain Medicine (Anesthesiology) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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Bobbi Atkinson Family Nurse Practitioner · Easton, MD NPI 1720386030 Advanced Pain Management Specialists, LLC Pain Medicine (Physical Medicine & Rehabilitation) Physician · Easton, MD NPI 1316460660 Edward Luschinski Family Nurse Practitioner · Easton, MD NPI 1205447448 Ashley Sheehan Family Nurse Practitioner · Easton, MD NPI 1225734163 Advanced Pain Management Specialists, LLC Interventional Pain Medicine Physician · Easton, MD NPI 1427893650 Capital Care Anesthesia LLC Anesthesiology Physician · Easton, MD NPI 1538906383

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-01.