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ROBERT J ELSEN M.D.
NPI 1639212624
Internal Medicine - Gastroenterology in San Francisco, CA

Active since February 15, 2007PECOS EnrolledAccepts Medicare Assignment
81.68/100
CMS Quality Rating
45 CASTRO ST STE 437, SAN FRANCISCO, CA 94114(415) 469-0643 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Robert J Elsen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT J ELSEN M.D. (NPI 1639212624) is an individual gastroenterology provider in San Francisco, California, licensed in California (G71096) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1986).

NPPES Registry Identity

NPI1639212624
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameROBERT J ELSENCredential: M.D.
Location Address45 CASTRO ST STE 437San Francisco, CA 94114-1029
Mailing Address54 Martha AveSan Francisco, CA 94131-2835 · (415) 469-0643
Phone(415) 469-0643
Sole ProprietorYes
Medical School CMSOtherGraduated 1986
Enumeration DateFebruary 15, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1639212624 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · G71096
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
45 CASTRO ST STE 437, San Francisco, CA 94114
Open in Google Maps ↗

Other Identifiers 2

Medicare ID-Type UnspecifiedZZZ10655ZCA
Medicare UPINE93603CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Robert J Elsen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5597862805
PECOS Enrollment IDI20081013000223
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
99 services82 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
95 services94 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
95 services95 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
81 services81 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
72 services60 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
68 services68 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.68/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality61.03
Promoting Interoperability100
Improvement Activities40
Cost68.65

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BRIAN T. ANDREWS, M.D., A PROFESSIONAL CORPORATION
Neurological Surgery
45 CASTRO ST STE 437
SAN FRANCISCO, CA 94114
San Francisco County (415) 600-7760
DR. BRIAN THOMAS ANDREWS M.D.
Neurological Surgery
45 CASTRO ST STE 437
SAN FRANCISCO, CA 94114
San Francisco County (415) 600-7760

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Elsen's NPI number?

The NPI number for Robert Elsen is 1639212624. It was assigned to this individual provider in the NPPES registry on February 15, 2007.

Where is Robert Elsen located?

Robert Elsen practices at 45 Castro St Ste 437, San Francisco, CA 94114. The listed phone number is (415) 469-0643.

What is Robert Elsen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Robert Elsen enrolled in Medicare?

Yes. Robert Elsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Robert Elsen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.