PROHEALTH PARTNERS A MEDICAL GROUP INC
NPI 1962783704
Internal Medicine in Los Alamitos, CA

Q: What is Prohealth Partners A Medical Group Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since September 07, 2011

3801 KATELLA AVE, SUITE 300, LOS ALAMITOS, CA 90720(562) 299-5200 Get Directions Write a Review

NPPES record last updated: September 4, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Prohealth Partners A Medical Group Inc NPPES

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

PROHEALTH PARTNERS A MEDICAL GROUP INC (NPI 1962783704) is a healthcare organization registered as an internal medicine in Los Alamitos, California and active in the NPI registry since September 2011. The organization lists Peter Ferrera, President, as its authorized official.

NPPES Registry Identity

NPI1962783704

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NamePROHEALTH PARTNERS A MEDICAL GROUP INC

Location Address3801 KATELLA AVE, SUITE 300Los Alamitos, CA 90720-3338

Mailing Address3801 Katella Ave Ste 300Los Alamitos, CA 90720-3372 · (562) 430-6472

Phone(562) 299-5200

Organization SubpartNo

Authorized OfficialPeter FerreraPresident · (562) 299-5200

Enumeration DateSeptember 7, 2011

Last NPPES UpdateSeptember 4, 2025

NPPES CertifiedSeptember 4, 2025

✔ NPI 1962783704 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

3801 KATELLA AVE, Los Alamitos, CA 90720

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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Prohealth Partners A Medical Group Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

278

Medicare enrollment records show 278 clinicians reassign Medicare billing to Prohealth Partners A Medical Group Inc, which bills Medicare for the services they deliver. Of these, 11 practice at this address and 141 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 38

Nurse Practitioner55

Internal Medicine50

Family Practice38

Nephrology18

Cardiovascular Disease (Cardiology)17

Obstetrics/Gynecology10

Gastroenterology7

Hospitalist6

30 other specialties77

Nearest to this location (20)

See all 278

Ana Maria De Jesus

Nurse Practitioner

NPI 1801497706

3801 KATELLA AVE STE 3303801
Los Alamitos, CA 90720

(949) 610-4919

✔ PECOS✔ Accepts MedicareSame address

Petra Wong, MD

Internal Medicine

NPI 1578585915

3801 KATELLA AVE STE 300
Los Alamitos, CA 90720

(562) 430-6472

✔ PECOS✔ Accepts MedicareSame address

Sandra Kim, FNP, RN, PHN

Nurse Practitioner

NPI 1306355698

3801 KATELLA AVE STE 330
Los Alamitos, CA 90720

(562) 594-9546

✔ PECOS✔ Accepts MedicareSame address

Michele Nelson-Chung, LMFT

Marriage and Family Therapist

NPI 1548704612

3801 KATELLA AVE STE 330
Los Alamitos, CA 90720

(562) 740-5303

✔ PECOS✔ Accepts MedicareSame address

Mary Seiersen, RDE

Registered Dietitian or Nutrition Professional

NPI 1538282983

3851 KATELLA AVE STE 275
Los Alamitos, CA 90720

(562) 296-5528

Same address

Veronica Zoleta, NP

Nurse Practitioner

NPI 1992446868

3851 KATELLA AVE STE 275
Los Alamitos, CA 90720

(562) 296-5528

✔ PECOSSame address

Thien-Kim Co, DO

Nephrology

NPI 1033732953

3851 KATELLA AVE STE 325
Los Alamitos, CA 90720

(562) 286-6466

✔ PECOS✔ Accepts MedicareSame address

Ruby Elaine Calalo, AGACNP-BC

Nurse Practitioner

NPI 1043915440

3851 KATELLA AVE STE 315
Los Alamitos, CA 90720

(562) 626-8016

✔ PECOS✔ Accepts MedicareSame address

Winston Chung, MD

Internal Medicine

NPI 1851322085

3801 KATELLA AVE SUITE 330
Los Alamitos, CA 90720

(562) 594-9546

✔ PECOS✔ Accepts MedicareSame address

Gerald Cohen, MD

Internal Medicine

NPI 1306877253

3801 KATELLA AVE SUITE 330
Los Alamitos, CA 90720

(562) 594-9546

✔ PECOS✔ Accepts MedicareSame address

Jennifer Kim Loomis, D.O.

Family Practice

NPI 1215136940

3801 KATELLA AVE 222
Los Alamitos, CA 90720

(562) 296-5528

✔ PECOS✔ Accepts MedicareSame address

Sheida Kashani, D.O.

Internal Medicine

NPI 1285752436

10941 BLOOMFIELD ST STE A
Los Alamitos, CA 90720

(562) 716-7466

✔ PECOS✔ Accepts Medicare0.1 mi

Duke Ahn, M.D.

Orthopedic Surgery

NPI 1942318373

3700 KATELLA AVE STE C
Los Alamitos, CA 90720

(562) 583-2250

✔ PECOS✔ Accepts Medicare0.2 mi

James Sheppard, DO

Family Practice

NPI 1255686044

3700 KATELLA AVE STE D
Los Alamitos, CA 90720

(562) 855-2700

✔ PECOS✔ Accepts Medicare0.2 mi

Rebekah Neal, M.D.

Rheumatology

NPI 1215165667

10861 CHERRY ST SUITE 104
Los Alamitos, CA 90720

(562) 794-9801

✔ PECOS✔ Accepts Medicare0.2 mi

Rebecca Schwartz, MD

Obstetrics/Gynecology

NPI 1619931599

10861 CHERRY ST STE 105
Los Alamitos, CA 90720

(562) 595-1961

✔ PECOS✔ Accepts Medicare0.2 mi

Danielle Villatoro, NP

Nurse Practitioner

NPI 1023560885

10861 CHERRY ST STE 105
Los Alamitos, CA 90720

(562) 595-1961

✔ PECOS✔ Accepts Medicare0.2 mi

Meenakshi Verma, M.D

Nephrology

NPI 1942463427

10861 CHERRY ST STE 104
Los Alamitos, CA 90720

(562) 446-0580

✔ PECOS✔ Accepts Medicare0.2 mi

Andrew Hanna, D.O.

Physical Medicine and Rehabilitation

NPI 1972042620

3662 KATELLA AVE STE 117
Los Alamitos, CA 90720

(310) 507-7984

✔ PECOS✔ Accepts Medicare0.2 mi

Daniel Kim

Hospitalist

NPI 1174801344

10541 CALLE LEE STE 117
Los Alamitos, CA 90720

(714) 794-2777

✔ PECOS✔ Accepts Medicare0.6 mi

See all 278 clinicians

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

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 Prohealth Partners A Medical Group Inc's NPI number?

The NPI number for Prohealth Partners A Medical Group Inc is 1962783704. It was assigned to this organization in the NPPES registry on September 7, 2011.

Where is Prohealth Partners A Medical Group Inc located?

Prohealth Partners A Medical Group Inc is located at 3801 Katella Ave Suite 300, Los Alamitos, CA 90720. The listed phone number is (562) 299-5200.

What is Prohealth Partners A Medical Group Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Prohealth Partners A Medical Group Inc enrolled in Medicare?

Yes. Prohealth Partners A Medical Group Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Prohealth Partners A Medical Group Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 278 clinicians in 38 Medicare specialties reassign their Medicare billing to Prohealth Partners A Medical Group Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (55), Internal Medicine (50) and Family Practice (38). Of these, 11 practice at this address and 141 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Prohealth Partners A Medical Group Inc was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.