GUILLERMO ALBERTO MANTILLA M.D.
NPI 1326234816
Hospitalist in Carmichael, CA

Active since September 19, 2007PECOS EnrolledAccepts Medicare Assignment
96.5/100
CMS Quality Rating
6555 COYLE AVE STE 280, CARMICHAEL, CA 95608(916) 536-3540(916) 536-3541 Get Directions Write a Review

NPPES record last updated: February 26, 2019. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 26, 2019, May 15, 2017 (2 updates tracked since 2017).

About Guillermo Alberto Mantilla M.d. NPPES

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

GUILLERMO ALBERTO MANTILLA M.D. (NPI 1326234816) is an individual hospitalist provider in Carmichael, California, licensed in California (C159709) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1326234816
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameGUILLERMO ALBERTO MANTILLACredential: M.D.
Location Address6555 COYLE AVE STE 280Carmichael, CA 95608-0302
Mailing Address3400 Data DrRancho Cordova, CA 95670-7956
Fax(916) 536-3541
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateSeptember 19, 2007
Last NPPES UpdateFebruary 26, 20192 updates tracked since enumeration
NPI 1326234816 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Licenses Licensed in CA · C159709 Licensed in TN · 42647
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
6555 COYLE AVE STE 280, Carmichael, CA 95608

Other Identifiers 3

Other4352401TN · Bcbs
Medicaid7100423880KY
Medicaid1512334TN

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

Guillermo Alberto Mantilla 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 ID6002903762
PECOS Enrollment IDI20190403001089
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 2

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.

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.
345 services329 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95608 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
$137.20 typical visit price
range $60.44 – $180.85
Typical copayment $34.30 (range $15.11 – $45.21)
Most-billed visit code 99204
Established Patient
$105.95 typical visit price
range $19.88 – $148.15
Typical copayment $26.48 (range $4.97 – $37.03)
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.

96.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.34
Promoting Interoperability100
Improvement Activities40

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.

Psychiatry & Neurology (Neurology)
6555 COYLE AVE STE 280
CARMICHAEL, CA 95608
Internal Medicine (Interventional Cardiology)
6555 COYLE AVE STE 280
CARMICHAEL, CA 95608
Internal Medicine (Interventional Cardiology)
6555 COYLE AVE STE 280
CARMICHAEL, CA 95608
Hospitalist
6555 COYLE AVE STE 280
CARMICHAEL, CA 95608
Hospitalist
6555 COYLE AVE STE 280
CARMICHAEL, CA 95608
Internal Medicine (Interventional Cardiology)
6555 COYLE AVE STE 280
CARMICHAEL, CA 95608
Physician Assistant
6555 COYLE AVE STE 280
CARMICHAEL, CA 95608
Physician Assistant (Surgical)
6555 COYLE AVE STE 280
CARMICHAEL, CA 95608

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 Guillermo Mantilla's NPI number?

The NPI number for Guillermo Mantilla is 1326234816. It was assigned to this individual provider in the NPPES registry on September 19, 2007.

Where is Guillermo Mantilla located?

Guillermo Mantilla practices at 6555 Coyle Ave Ste 280, Carmichael, CA 95608. The listed phone number is (916) 536-3540.

What is Guillermo Mantilla's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Guillermo Mantilla enrolled in Medicare?

Yes. Guillermo Mantilla 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 Guillermo Mantilla was last updated on February 26, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.