Steven W. Rittenberg, MD
Adolescent Medicine (Internal Medicine) Physician · Bellevue, WA
Steven W. Rittenberg, MD is an adolescent medicine (internal medicine) physician with a practice address in Bellevue, Washington, and NPI 1851455893, issued on Dec 21, 2006. Check the license (Washington MD00033053, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Steven W. Rittenberg
- Credential
- MD
- Primary taxonomy
- Adolescent Medicine (Internal Medicine) Physician 207RA0000X
- License number
- MD00033053 WA
Self-reported in NPPES; status is on the state search - Practice location
- 12917 SE 38TH St, Bellevue, WA 98006
- Phone
- (425) 641-4000
- Enumerated
- Dec 21, 2006
- Record last updated
- Sep 28, 2023
- Fax
- (206) 320-5840
- Medicaid ID
- 8188823 WA
- Medicare enrollment
- Enrolled (PECOS I20230815003948); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
2 nearest adolescent medicine (internal medicine) physician records → All 3 in Washington → Look up another NPI →
Also registered at 12917 SE 38TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Steven W. Rittenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00033053Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% more Medicare Part D claims than the average adolescent medicine (internal medicine) physician in 2024
3,691 Medicare Part D claims for 842 beneficiaries, against an average of 3,639 among the 177 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 139 claims were for opioids.
Most prescribed
- Atorvastatin Calcium258 claims
- Rosuvastatin Calcium141 claims
- Lisinopril137 claims
- Albuterol Sulfate Hfa120 claims
- Amlodipine Besylate117 claims
- Hydrocodone-Acetaminophen110 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupWoodland Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adolescent Medicine (Internal Medicine) Physician providers in Washington
There are 3 adolescent medicine (internal medicine) physician records in Washington.
All 3 in Washington → Every provider in Bellevue → Adolescent Medicine (Internal Medicine) Physician nationwide →
The 2 adolescent medicine (internal medicine) physician records with the nearest ZIP codes
- Cynthia Burdick, MDBellevue, WA 980061194851519
- Tanya Rizzo, MDRenton, WA 980551013085109
Common questions
What is Steven W. Rittenberg, MD's NPI number?
Steven W. Rittenberg, MD's National Provider Identifier (NPI) is 1851455893, issued on Dec 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven W. Rittenberg, MD located?
The NPPES record lists a practice address at 12917 SE 38TH St, Bellevue, WA, 98006. Phone: (425) 641-4000. Providers update this record themselves, so call before visiting.
How can I verify Steven W. Rittenberg, MD's license?
NPPES lists Washington license number MD00033053, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Steven W. Rittenberg, MD prescribe under Medicare Part D?
In 2024, Steven W. Rittenberg, MD had 3,691 Medicare Part D claims for 842 beneficiaries; the average among adolescent medicine (internal medicine) physician prescribers was 3,639. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.