DR. CARL WALTER FIESER JR. M.D.
NPI 1346515319
Physical Medicine & Rehabilitation - Pain Medicine in Walnut Creek, CA

Q: What is Carl Fieser's NPI number?

The NPI number for Carl Fieser is 1346515319. It was assigned to this individual provider in the NPPES registry on March 9, 2012.

Q: What is Carl Fieser's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation, specializing in Pain Medicine, with taxonomy code 2081P2900X.

Q: When was this NPI record last updated?

The NPPES record for Carl Fieser was last updated on September 13, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.

Active since March 09, 2012PECOS EnrolledAccepts Medicare Assignment

450 N WIGET LN, WALNUT CREEK, CA 94598(925) 691-9806(925) 691-9807 Get Directions Write a Review

NPPES record last updated: September 13, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Carl Walter Fieser Jr. M.d. NPPES

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

DR. CARL WALTER FIESER JR. M.D. (NPI 1346515319) is an individual pain medicine provider in Walnut Creek, California, licensed in California (A96870) and active in the NPI registry since March 2012. He is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (2002).

NPPES Registry Identity

NPI1346515319

Entity TypeIndividualMale

Primary Taxonomy2081P2900X

Provider Legal NameDR. CARL WALTER FIESER JR.Credential: M.D.

Location Address450 N WIGET LNWalnut Creek, CA 94598-2408

Mailing Address450 N Wiget LnWalnut Creek, CA 94598-2408 · (925) 691-9806 · Fax (925) 691-9807

Phone(925) 691-9806

Fax(925) 691-9807

Sole ProprietorNo

Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 2002

Enumeration DateMarch 9, 2012

Last NPPES UpdateSeptember 13, 2012

✔ NPI 1346515319 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysical Medicine & Rehabilitation · Pain MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2081P2900X

License✔ Licensed in CA · A96870

Definition

A physician who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic or cancer pain in both hospital and ambulatory settings. Patient care needs may also be coordinated with other specialists.

Also ListedPhysical Medicine & RehabilitationTaxonomy 208100000X · License A96870 (CA)

450 N WIGET LN, Walnut Creek, CA 94598

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Carl Walter Fieser Jr. 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 ID7911156070

PECOS Enrollment IDI20121004000369

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.

Medicare Billing Reassignment

Medicare enrollment records show Carl Fieser reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Integrated Pain Management Medical Group, Inc.

0.1 mi

Pain Medicine

450 N WIGET LN
Walnut Creek, CA 94598

Reassigned Medicare billing, California enrollment
137 clinicians in this Medicare group

NPI 1922198779 (925) 691-9806

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

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 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.

1,061 services152 patients

Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms G0483

A definitive drug test identifies specific drugs in your system. It uses advanced methods like gc/ms and lc/ms, which can distinguish between different types of drugs but not necessarily their 3D forms. This test offers detailed results to support your healthcare decisions.

464 services148 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

361 services140 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

259 services101 patients

Therapy procedure using manual technique, each 15 minutes 97140

This therapy involves using hands-on techniques to help improve your body's movement and function. These techniques may include stretching, resistance exercises, or gentle pressure. Each session lasts 15 minutes and aims to relieve pain, promote healing, and improve your overall health.

132 services11 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

95 services52 patients

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.

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