Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Iva Esparza , NP

Nurse Practitioner โ€ข Berkeley, CA

Active NPI 1235801549 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

2850 Telegraph Ave Ste 110
Berkeley, CA 947051159

Call 5102048140 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

2850 Telegraph Ave Ste 110

Berkeley, CA 947051159

Telephone 5102048140
Fax 5105067721
Organization at the Same NPPES Address or Phone
Brown Emergency Medicine Facility NPI 1336960483

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Riverside, RI. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Sutter Bay Medical Foundation. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2021

Medicare-allowed amount

About $20,276 in 2023

The total amount Medicare approved for these services in 2023. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2023.

Paid by Medicare

About $15,510 in 2023

The part of the Medicare-allowed amount that Medicare itself paid in 2023, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2023.

30-day fills

1,736 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$191,366 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $61.82 in 2021

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2021.

Guide: How to read an Open Payments record

Years since graduation

5 years (graduated 2021)

CMS Doctors and Clinicians data list 2021 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2021

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Iva Esparza has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Iva Esparza as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Berkeley and California

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

More Part D prescriptions than 90% of clinicians listed under Nurse Practitioner in Berkeley, CA (2024, 17 clinicians with data). Median for this group: 621. Middle half: 245 to 1,160.

More Part D prescriptions than 85% of clinicians listed under Nurse Practitioner in California (2024, 3,221 clinicians with data). Median for this group: 248. Middle half: 63 to 852.

Part D drug cost

A higher Part D drug cost than 80% of clinicians listed under Nurse Practitioner in Berkeley, CA (2024, 17 clinicians with data). Median for this group: $54,563. Middle half: $10,057 to $173,146.

A higher Part D drug cost than 80% of clinicians listed under Nurse Practitioner in California (2024, 3,221 clinicians with data). Median for this group: $13,982. Middle half: $995 to $121,041.

Medicare Part B

Comparisons use 2024 data. The latest CMS data for Iva Esparza are from 2023.

33 active clinicians are listed under Nurse Practitioner with a practice address in Berkeley, CA (8,237 in California).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Berkeley

27.3% of these 33 clinicians have the CMS telehealth indicator.

54.5% of these 33 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2021

Program year 2021 (payments made January 1 โ€“ December 31, 2021): fewer than 11 records totaling $61.82.

Manufacturer Payment Nature Product Type Amount ($)
ACADIA Pharmaceuticals Inc
Food and Beverage
In-kind items and services
NUPLAZID General $61.82

Source: CMS Open Payments, program year 2021, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2023.

CMS Part B ยท Data Year 2023
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2021โ€“2022 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2022โ€“2023; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
86 23 $210.00 $91.70
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
72 34 $210.00 $91.63
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
22 14 $159.00 $64.20
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
15 12 $159.00 $64.03
99315 Nursing facility discharge day management, 30 minutes or less
15 15 $167.00 $70.06
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
13 13 $214.00 $78.21
99316 Nursing facility discharge management, more than 30 minutes
12 11 $239.00 $112.67

Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 143 3,965 $6,720.35 23
Amlodipine Besylate Amlodipine Besylate 134 3,589 $2,881.72 15
Metoprolol Succinate Metoprolol Succinate 84 2,349 $1,436.48 โ€”
Lisinopril Lisinopril 63 1,750 $941.39 โ€”
Escitalopram Oxalate Escitalopram Oxalate 62 1,751 $2,902.81 โ€”
Metformin Hcl Metformin Hcl 56 1,534 $1,172.40 โ€”
Gabapentin Gabapentin 55 1,545 $1,233.02 โ€”
Duloxetine Hcl Duloxetine Hcl 52 1,450 $3,828.86 โ€”
Levothyroxine Sodium Levothyroxine Sodium 50 1,442 $585.20 โ€”
Levetiracetam Levetiracetam 47 1,241 $2,936.98 โ€”
Ozempic Semaglutide 47 1,386 $47,165.99 โ€”
Rosuvastatin Calcium Rosuvastatin Calcium 46 1,350 $3,722.00 โ€”
Losartan Potassium Losartan Potassium 45 1,235 $1,364.25 โ€”
Hydrochlorothiazide Hydrochlorothiazide 44 1,247 $317.69 โ€”
Eliquis Apixaban 40 1,083 $21,922.78 โ€”
Tamsulosin Hcl Tamsulosin Hcl 29 852 $1,791.55 โ€”
Mirtazapine Mirtazapine 26 728 $715.26 โ€”
Furosemide Furosemide 25 603 $199.16 โ€”
Diltiazem 24hr Er (Cd) Diltiazem Hcl 25 700 $454.00 โ€”
Donepezil Hcl Donepezil Hcl 24 645 $1,747.07 โ€”
Spironolactone Spironolactone 24 655 $264.04 โ€”
Dapagliflozin Dapagliflozin Propanediol 24 658 $12,025.85 โ€”
Metformin Hcl Er Metformin Hcl 23 644 $488.54 โ€”
Fluticasone Propionate Fluticasone Propionate 22 898 $697.32 โ€”
Triamcinolone Acetonide Triamcinolone Acetonide 22 548 $226.81 โ€”

(top 25 shown)

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-03-19
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES RI APRN03231

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Clinical Nurse Specialist - Gerontology

NUCC Taxonomy Code: 364SG0600X

License # reported to NPPES CT 10081
Nurse Practitioner - Adult Health

NUCC Taxonomy Code: 363LA2200X

License # reported to NPPES CT 10081
Nurse Practitioner

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES CA NP95024499

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Nurse Practitioner - Gerontology

NUCC Taxonomy Code: 363LG0600X

License # reported to NPPES RI APRN03231
Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20260127000598

Enrollment State Jurisdiction

CA

PECOS Control ID

1254724016

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Sutter Bay Medical Foundation

2850 Telegraph Ave, Berkeley, CA 947051159

Sutter Bay Medical Foundation

350 Hawthorne Ave, Oakland, CA 946093108

Phone: 5106554000

Sutter Bay Medical Foundation

350 Hawthorne Ave, Oakland, CA 946093108

Phone: 5108696883

Sutter Bay Medical Foundation

3200 Kearney St, Fremont, CA 945382299

Phone: 5104901222

Secondary Practice Locations

375 Wampanoag Trl

Riverside, RI 029152232

Phone: 4016494010

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

25 listed
Dr. Matthew Arnold , MD

Psychiatry & Neurology - Neurology

NPI 1477504926

Doctor of Medicine (M.D.)

Dr. Giovanni Begossi , MD

Surgery - Surgical Oncology

NPI 1053460873

Doctor of Medicine (M.D.)

Kelley Booth , NP

Nurse Practitioner - Family

NPI 1053830851

Nurse Practitioner

Dr. Alexander Carlin , DO

Psychiatry & Neurology - Neurology

NPI 1811429921

Doctor of Osteopathic Medicine (D.O.)

Dr. Joanna Cooper , MD

Psychiatry & Neurology - Neurology

NPI 1558477018

Doctor of Medicine (M.D.)

Aryn Earnhardt , FNP

Nurse Practitioner

NPI 1740552850

Family Nurse Practitioner

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

11 Historical Events
๐Ÿ“
Updated Practice Location March 19, 2026

Registered at 2850 TELEGRAPH AVE STE 110, BERKELEY, CA 947051159 (Tel: 5102048140)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 23, 2026

Clinical Nurse Specialist (license number reported to NPPES: CT 10081)

๐Ÿ“
Updated Business Mailing Address September 21, 2022

Registered at 110 ELM ST, PROVIDENCE, RI 029034626 (Tel: 4014434992)

๐Ÿ“
Updated Practice Location August 26, 2022

Registered at 375 WAMPANOAG TRL, RIVERSIDE, RI 029152232 (Tel: 4016494010)

๐Ÿ‘ค
Provider Name / Credentials Updated August 26, 2022

Recorded as IVA ESPARZA, NP

โœ…
NPI Profile Active October 05, 2021

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) October 05, 2021

Registered at 20 YORK ST, NEW HAVEN, CT 065103220 (Tel: 8585253092)

๐Ÿ“
Business Mailing Address (Initial Record) October 05, 2021

Registered at 772 ORANGE ST, NEW HAVEN, CT 065112535

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) October 05, 2021

Recorded as IVA ESPARZA

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) October 05, 2021

Nurse Practitioner (license number reported to NPPES: CT 10081)

๐ŸŸข
Initial NPI Registration & Enumeration October 05, 2021

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1235801549
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 05, 2021
Last Update: March 19, 2026
Sole Proprietor: Yes

Other Nurse Practitioners in Berkeley

All Nurse Practitioners in Berkeley

Mailing Address

110 Elm St

Providence, RI 029034626

Phone: 4014434992

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.