ASHTON R GROSSO DO
NPI 1992201859
Hospitalist in Santa Cruz, CA

Q: What is Ashton Grosso's NPI number?

The NPI number for Ashton Grosso is 1992201859. It was assigned to this individual provider in the NPPES registry on March 31, 2018. The provider is also known as Ashton Nielson Do.

Q: What is Ashton Grosso'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 Ashton Grosso was last updated on October 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.

Active since March 31, 2018PECOS EnrolledAccepts Medicare Assignment

96.5/100

CMS Quality Rating

1595 SOQUEL DR STE 400, SANTA CRUZ, CA 95065(831) 475-1111(831) 476-5020 Get Directions Write a Review

NPPES record last updated: October 23, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 31, 2022, Aug 2, 2019, Mar 31, 2018 (3 updates tracked since 2018).

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About Ashton R Grosso Do NPPES

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

ASHTON R GROSSO DO (NPI 1992201859) is an individual hospitalist provider in Santa Cruz, California, licensed in California (20A19255) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, maintains a secondary practice location in Santa Cruz, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1992201859

Entity TypeIndividualFemale

Primary Taxonomy208M00000X

Provider Legal NameASHTON R GROSSOCredential: DO

Location Address1595 SOQUEL DR STE 400Santa Cruz, CA 95065-1724

Mailing Address3400 Data DrRancho Cordova, CA 95670-7956

Phone(831) 475-1111

Fax(831) 476-5020

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateMarch 31, 2018

Last NPPES UpdateOctober 23, 20253 updates tracked since enumeration

NPPES CertifiedOctober 23, 2025

✔ NPI 1992201859 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CA · 20A19255

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 ListedFamily MedicineTaxonomy 207Q00000X · License 20A19255 (CA)

Also ListedInternal MedicineTaxonomy 207R00000X · License 20A19255 (CA)

1595 SOQUEL DR STE 400, Santa Cruz, CA 95065

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Other Names 1

Former Name (1)Ashton Nielson Do

Secondary Practice Location 1

Location 11301 Mission StSanta Cruz, CA 95060-3530 · Phone (831) 458-6300 · Fax (831) 458-6305

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

Ashton R Grosso 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 ID8426441130

PECOS Enrollment IDI20220201002256

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 4

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.

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.

419 services159 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

121 services118 patients

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.

37 services35 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

31 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95065 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

$141.77 typical visit price

range $62.97 – $186.69

Typical copayment $35.44 (range $15.74 – $46.67)

Most-billed visit code 99204

Established Patient

$109.72 typical visit price

range $21.02 – $153.16

Typical copayment $27.43 (range $5.25 – $38.29)

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

Quality

80.34

Promoting Interoperability

100

Improvement Activities

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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