DR. MICHAEL ALFRED MELLENTHIN JR. M.D.
NPI 1225172745
Anesthesiology in Fresno, CA

Q: What is Michael Mellenthin's NPI number?

The NPI number for Michael Mellenthin is 1225172745. It was assigned to this individual provider in the NPPES registry on February 16, 2007.

Q: What is Michael Mellenthin's specialty?

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

Active since February 16, 2007PECOS Enrolled

FRESNO & R STREET, FRESNO, CA 93721(559) 459-6000 Get Directions Write a Review

NPPES record last updated: November 8, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Michael Alfred Mellenthin Jr. M.d. NPPES

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

DR. MICHAEL ALFRED MELLENTHIN JR. M.D. (NPI 1225172745) is an individual anesthesiology provider in Fresno, California, licensed in California (G58951) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1225172745

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDR. MICHAEL ALFRED MELLENTHIN JR.Credential: M.D.

Location AddressFRESNO & R STREETFresno, CA 93721

Mailing AddressPo Box 45123San Francisco, CA 94145-7733 · (209) 956-7725 · Fax (209) 956-7733

Phone(559) 459-6000

Sole ProprietorYes

Enumeration DateFebruary 16, 2007

Last NPPES UpdateNovember 8, 2011

✔ NPI 1225172745 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · G58951

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.

FRESNO & R STREET, Fresno, CA 93721

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Other Identifiers 2

Medicare PINAQ259ZCA

Medicare PINAQ259WCA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Michael Alfred Mellenthin Jr. M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Michael Mellenthin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cep America - Anesthesia PC

107 mi

Anesthesiology

1205 E NORTH ST
Manteca, CA 95336

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

NPI 1538709563 (209) 823-3111

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

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.

Reported Quality Measures

Pre-operative OSA assessment

Percentage of patients who undergo a surgical procedure in the operating room/procedure room that have a pre-operative assessment for Obstructive Sleep Apnea (OSA)

97%348 patients4/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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. JOSEPH WILLIAM MARTIN DNP, CRNA

Nurse Anesthetist, Certified Registered