JUSTIN N GRAMMY DO
NPI 1003254483
Hospitalist in San Luis Obispo, CA

Q: What is Justin Grammy's NPI number?

The NPI number for Justin Grammy is 1003254483. It was assigned to this individual provider in the NPPES registry on June 7, 2013.

Q: What is Justin Grammy's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Justin Grammy was last updated on November 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 June 07, 2013PECOS EnrolledAccepts Medicare Assignment

1428 PHILLIPS LN STE 203, SAN LUIS OBISPO, CA 93401(805) 543-4407(805) 543-4587 Get Directions Write a Review

NPPES record last updated: November 17, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 17, 2021, Aug 14, 2018, Jun 23, 2017 (3 updates tracked since 2017).

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About Justin N Grammy Do NPPES

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

JUSTIN N GRAMMY DO (NPI 1003254483) is an individual hospitalist provider in San Luis Obispo, California, licensed in California (16620) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1003254483

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameJUSTIN N GRAMMYCredential: DO

Location Address1428 PHILLIPS LN STE 203San Luis Obispo, CA 93401-2551

Mailing AddressPo Box 12460San Luis Obispo, CA 93406-2460 · (805) 543-4407 · Fax (805) 543-4587

Phone(805) 543-4407

Fax(805) 543-4587

Sole ProprietorNo

Medical School CMSOtherGraduated 2013

Enumeration DateJune 7, 2013

Last NPPES UpdateNovember 17, 20213 updates tracked since enumeration

NPPES CertifiedNovember 17, 2021

✔ NPI 1003254483 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CA · 16620

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License OS018634 (PA), 16620 (CA)

1428 PHILLIPS LN STE 203, San Luis Obispo, CA 93401

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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

Justin N Grammy Do 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 ID3274804752

PECOS Enrollment IDI20180901000074

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

Medicare enrollment records show Justin Grammy reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Central Coast Chest Consultants A Medical Corporation

Same address

Critical Care Medicine

1428 PHILLIPS LN, SUITE 203
San Luis Obispo, CA 93401

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

NPI 1740267574 (805) 543-4407

Cep America - Intensivists PC

19 mi

Critical Care Medicine

1100 LAS TABLAS RD
Templeton, CA 93465

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

NPI 1538989421 (805) 434-3500

Barton Medical Foundation

253 mi

Family Medicine

2170 SOUTH AVE
South Lake Tahoe, CA 96150

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

NPI 1750950499 (530) 541-3420

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 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.

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.

190 services84 patients

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.

66 services52 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93401 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

$135.73 typical visit price

range $59.84 – $178.89

Typical copayment $33.93 (range $14.96 – $44.72)

Most-billed visit code 99204

Established Patient

$104.82 typical visit price

range $19.70 – $146.55

Typical copayment $26.20 (range $4.92 – $36.63)

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.

Reported Quality Measures

Care Plan

Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…

45%110 patients2/55-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 5

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

DR. GREGORY SCOTT CANFIELD M.D., PH.D.

Internal Medicine (Infectious Disease)