Nathaniel Benjamin Berg, MD
Vascular & Interventional Radiology Physician · Tamuning, GU
Nathaniel Benjamin Berg, MD is a vascular & interventional radiology physician with a practice address in Tamuning, Guam, and NPI 1265646806, issued on May 10, 2007. Check the license (Guam M-1142, as entered in NPPES) with the Guam board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Benjamin Berg
- Credential
- MD
- Primary taxonomy
- Vascular & Interventional Radiology Physician 2085R0204X
- License number
- M-1142 GU
Self-reported in NPPES; status is on the state search - Practice location
- 633 Governor Carlos Camacho Road, Tamuning, GU 96913
- Phone
- (671) 649-1001
- Enumerated
- May 10, 2007
- Record last updated
- Dec 9, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (671) 649-1002
- Medicare enrollment
- Enrolled (PECOS I20170703001328); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 1990
- Entity
- Type 1 · individual
4 nearest vascular & interventional radiology physician records → All 5 in Guam → Look up another NPI →
Also registered at 633 Governor Carlos Camacho Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ellen Bez, MDInternal Medicine Physician1649484197
- Ashish Khandelwal, MDDiagnostic Radiology Physician1801055223
- Faraz Ouhadi, M.D.Specialist1063517639
Verify Nathaniel Benjamin Berg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Guam board licenses this profession
Search for license M-1142Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 88.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Guam Healthcare Development IncorporatedDededo, GU
- Guam Medical Imaging Center LLCTamuning, GU
- Guam X-RayTamuning, GU
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vascular & Interventional Radiology Physician providers in Guam
There are 5 vascular & interventional radiology physician records in Guam.
All 5 in Guam → Every provider in Tamuning → Vascular & Interventional Radiology Physician nationwide →
The 4 vascular & interventional radiology physician records with the nearest ZIP codes
- Xavier Packianathan, MDTamuning, GU 969131669692059
- Miran Ribati, M.D.Tamuning, GU 969131861780124
- Jeffery Shay, MDTamuning, GU 969131568462513
- Scott Shay, M.D.Dededo, GU 969291720175847
Common questions
What is Nathaniel Benjamin Berg, MD's NPI number?
Nathaniel Benjamin Berg, MD's National Provider Identifier (NPI) is 1265646806, issued on May 10, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Benjamin Berg, MD located?
The NPPES record lists a practice address at 633 Governor Carlos Camacho Road, Tamuning, GU, 96913. Phone: (671) 649-1001. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Benjamin Berg, MD's license?
NPPES lists Guam license number M-1142, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity only.
What is Nathaniel Benjamin Berg, MD's MIPS final score?
The 2023 MIPS final score is 88.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.