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MATTHEW STEPHEN KLEKMAN MD
NPI 1376905869
Anesthesiology in Oakland, CA

Active since March 23, 2016PECOS EnrolledAccepts Medicare Assignment
275 W MACARTHUR BLVD, OAKLAND, CA 94611(510) 752-6238 Get Directions Write a Review

NPPES record last updated: May 27, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 27, 2025, Nov 15, 2021, Jul 29, 2020 and 1 more (4 updates tracked since 2016).

About Matthew Stephen Klekman Md NPPES

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

MATTHEW STEPHEN KLEKMAN MD (NPI 1376905869) is an individual anesthesiology provider in Oakland, California, licensed in Oregon (MD197892) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, maintains a secondary practice location in Portland, and is a graduate of Tufts University School Of Medicine (2016).

NPPES Registry Identity

NPI1376905869
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMATTHEW STEPHEN KLEKMANCredential: MD
Location Address275 W MACARTHUR BLVDOakland, CA 94611-5641
Mailing Address3600 Broadway Fl 4, Suite 44Oakland, CA 94611-5730 · (510) 752-7297
Phone(510) 752-6238
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 2016
Enumeration DateMarch 23, 2016
Last NPPES UpdateMay 27, 20254 updates tracked since enumeration
NPPES CertifiedMay 31, 2022
✔ NPI 1376905869 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in OR · MD197892
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
275 W MACARTHUR BLVD, Oakland, CA 94611
Open in Google Maps ↗

Secondary Practice Location 1

Location 1707 SW Washington St Ste 700Portland, OR 97205-3523 · Phone (503) 299-9906 · Fax (503) 225-9002

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

Matthew Stephen Klekman Md 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 ID1254755135
PECOS Enrollment IDI20220428001335
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 Reassignments

2

Medicare enrollment records show Matthew Klekman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc
10 mi
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1235226531 (510) 307-1555
Southern California Permanente Medical Group
303 mi
Health Maintenance Organization
2103 E GONZALES RD
Oxnard, CA 93036
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1275756652 (805) 650-4700

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

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.

DR. ANNA C. MORGAN MD
Specialist
275 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
DR. TRANG H. LA MD
Radiology (Radiation Oncology)
275 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
DR. AMIN MATIN M.D., M.P.H.
Radiology (Diagnostic Radiology)
275 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (925) 295-5758
SUCHETA KORWAR MD
Student in an Organized Health Care Education/Training Program
275 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
MR. MATTHEW GABRIELSON D.P.T.
Physical Therapist (Orthopedic)
275 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-6221
MALORIE HACKER MD
Student in an Organized Health Care Education/Training Program
275 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
RENEE L. PERRY DO
Obstetrics & Gynecology
275 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
HERPRIT KAUR MAHAL MD
Hospitalist
275 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000

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 Matthew Klekman's NPI number?

The NPI number for Matthew Klekman is 1376905869. It was assigned to this individual provider in the NPPES registry on March 23, 2016.

Where is Matthew Klekman located?

Matthew Klekman practices at 275 W Macarthur Blvd, Oakland, CA 94611. The listed phone number is (510) 752-6238.

What is Matthew Klekman's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Matthew Klekman enrolled in Medicare?

Yes. Matthew Klekman 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.

Which organizations bill Medicare for Matthew Klekman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Klekman reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Richmond, CA) and Southern California Permanente Medical Group (Oxnard, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthew Klekman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Matthew Klekman was last updated on May 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.