Doctor profile · Federal record

Dr. Alexander Rittenberg, MD

Internal Medicine Physician (CMS: Internal Medicine) · Richmond, VA

  • NPI 1437543782
  • Accepts Medicare
  • MIPS 76.2 / 100 · 2023
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1300 E Marshall St
Richmond, VA 23298
(804) 828-3144
fax (804) 628-7104
Additional location
1250 E Marshall St
Richmond, VA 232985051
Mailing address
Po Box 91734
Richmond, VA 232911734

Credentials & registration

NPPES · NUCC
NPI registered
March 2015 — 11 yrs on file
Profile last updated
July 16, 2018
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Virginia #0101264527

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1437543782. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
16
Distinct HCPCS
1
Medicare allowed
$2,705
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 16 16 $169

In context: peer comparison

Among 117 peers in Richmond Internal Medicine Physician, average services per provider: 136. This provider delivers 0.1× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alexander Rittenberg's medical specialty?
Dr. Alexander Rittenberg practices Internal Medicine Physician in Richmond, VA.
Where does Dr. Alexander Rittenberg practice?
Dr. Alexander Rittenberg practices at 1300 E Marshall St, Richmond, VA 23298. Office phone: 8048283144.
What is Dr. Alexander Rittenberg's NPI?
Dr. Alexander Rittenberg's National Provider Identifier (NPI) is 1437543782, issued by NPPES.
Does Dr. Alexander Rittenberg accept Medicare assignment?
Yes. Dr. Alexander Rittenberg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexander Rittenberg commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.