Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Robert K. Gramenz, D.O.
Pediatrics Physician in Tacoma, WA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831246263
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Registry record
Entity type Individual (Type 1)
Name Robert K. Gramenz
Credential D.O.
Sex Male
Practice address 9505 S Steele St, Tacoma, WA, 98444
Phone (253) 597-6800
Enumeration date Jan 5, 2007
Last updated in NPPES Oct 30, 2007
Taxonomy & licenses
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License OP00001219 (WA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 8111650 | Medicaid | WA | - |
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.
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 Robert Gramenz?
Robert Gramenz is registered in NPPES with the primary taxonomy of Pediatrics 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 → Noelle Egge Physician Assistant · Tacoma, WA NPI 1508861709 Joel Paulino Internal Medicine Physician · Tacoma, WA NPI 1144221730 Xing Yi Family Medicine Physician · Tacoma, WA NPI 1427094457 Jeanne Bulla Family Nurse Practitioner · Tacoma, WA NPI 1689745531 Steven Berman Pediatrics Physician · Tacoma, WA NPI 1629125810 Robert Flack Family Medicine Physician · Tacoma, WA NPI 1730236464 Laura Kaufman Family Medicine Physician · Tacoma, WA NPI 1154472868 Ray Krueger Family Medicine Physician · Tacoma, WA NPI 1063564441
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-30.