DR. CARMEN ELENA COBB-WALCH
NPI 1447526454
Internal Medicine in San Francisco, CA

Active since March 24, 2012PECOS EnrolledAccepts Medicare Assignment
550 16TH ST, SAN FRANCISCO, CA 94158(414) 266-2000 Get Directions Write a Review

NPPES record last updated: June 3, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 3, 2026, May 13, 2026, Sep 29, 2021 and 5 more (8 updates tracked since 2016).

About Dr. Carmen Elena Cobb-walch NPPES

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

DR. CARMEN ELENA COBB-WALCH (NPI 1447526454) is an individual internal medicine provider in San Francisco, California, licensed in California (A160929) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Francisco, and is a graduate of Medical College Of Georgia School Of Medicine (2012).

NPPES Registry Identity

NPI1447526454
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. CARMEN ELENA COBB-WALCH
Location Address550 16TH STSan Francisco, CA 94158-2545
Mailing Address95 Third Street, 2nd Floor Suite #223San Francisco, CA 94103 · (510) 200-8182 · Fax (415) 965-4204
Sole ProprietorNo
Medical School CMSMedical College Of Georgia School Of MedicineGraduated 2012
Enumeration DateMarch 24, 2012
Last NPPES UpdateJune 3, 20268 updates tracked since enumeration
NPPES CertifiedJune 3, 2026
NPI 1447526454 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CA · A160929
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedPediatricsTaxonomy 208000000X · License A160929 (CA)
550 16TH ST, San Francisco, CA 94158

Other Names 1

Former Name (1)Carmen Elena Cobb Md

Secondary Practice Location 1

Location 195 Third Street, 2nd Floor Suite #223San Francisco, CA 94103-3103 · Phone (510) 200-8182 · Fax (415) 965-4204

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

Dr. Carmen Elena Cobb-walch 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 ID2860711033
PECOS Enrollment IDI20190702003008
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 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
63 services23 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
27 services11 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
26 services25 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
20 services20 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94158 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.

Other Providers at the Same Location NPPES 20

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

Pediatrics
550 16TH ST
SAN FRANCISCO, CA 94158
Pediatrics
550 16TH ST, 5TH FLOOR; BOX 0136
SAN FRANCISCO, CA 94158
Pediatrics (Pediatric Hematology-Oncology)
550 16TH ST
SAN FRANCISCO, CA 94158
Internal Medicine (Medical Oncology)
550 16TH ST
SAN FRANCISCO, CA 94158
Pediatrics (Pediatric Cardiology)
550 16TH ST
SAN FRANCISCO, CA 94158
Pediatrics (Pediatric Critical Care Medicine)
550 16TH ST, 4TH FLOOR, BOX 0110
SAN FRANCISCO, CA 94158
Pharmacist
550 16TH ST
SAN FRANCISCO, CA 94158
Preventive Medicine (Public Health & General Preventive Medicine)
550 16TH ST
SAN FRANCISCO, CA 94158

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 Carmen Cobb-walch's NPI number?

The NPI number for Carmen Cobb-walch is 1447526454. It was assigned to this individual provider in the NPPES registry on March 24, 2012. The provider is also known as Carmen Elena Cobb MD.

Where is Carmen Cobb-walch located?

Carmen Cobb-walch practices at 550 16th St, San Francisco, CA 94158. The listed phone number is (414) 266-2000.

What is Carmen Cobb-walch's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Carmen Cobb-walch enrolled in Medicare?

Yes. Carmen Cobb-walch 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 Carmen Cobb-walch was last updated on June 3, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.