ALEJANDRO ESPARZA-PEREZ (M.D.) – Internal Medicine Physician, NPI 1124098595

ALEJANDRO ESPARZA-PEREZ (M.D.) is a healthcare provider. based in Holyoke, Massachusetts. specializing in INTERNAL MEDICINE. They hold the professional credentials M.D.. They hold a License No. 211045 (MA). The NPI Number for ALEJANDRO ESPARZA-PEREZ (M.D.) is 1124098595

Main info

Male
29 Years Of Experience
Accepts Medicare Assignment
Name
ALEJANDRO ESPARZA-PEREZ (M.D.)
NPI
1124098595
Phone
(413) 420-2200
Address
230 MAPLE ST STE 1
Enumeration Date
26 January 2006
Last Update Date
1 March 2024

Doctor Profile

Medical School Name
OTHER
Secondary Phone
4134202200
Graduation Year
1997 (29 years ago)
PAC ID
1153515614
Group Practice PAC ID
8527969302
Professional Enrollment ID
I20101029000112
Address ID
MA010405144HO230XXSTXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

7,722 INTERNAL MEDICINE in MA

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Provider Addresses for ALEJANDRO ESPARZA-PEREZ (M.D.)

  • 230 MAPLE ST STE 1

    HOLYOKE, MA 010405140

    Phone: (413) 420-2200

    Fax: (413) 539-9472

    Type: Mailing

  • Valley Medical Group, 31, Hall Drive, Amherst, Massachusetts, 01004, United States

    AMHERST MEDICAL CENTER

    AMHERST, MA 010022751

    Phone: (413) 256-8561

    Fax: (413) 256-4421

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2010-10-29

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20101029000112IInternal MedicineMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
82947Blood glucose (sugar) level5326$0
83036Hemoglobin a1c level4324$0
G0008Administration of influenza virus vaccine1212$0
View full utilization report →

Insurance plans in this area (ZIP 01040)

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Provider's Procedures

ALEJANDRO ESPARZA-PEREZ (M.D.) performs procedures in INTERNAL MEDICINE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERNAL MEDICINEMA83036Hemoglobin A1C level11457

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8527969302View full group profile
NameSpecialtyState
-MA
O P T O M E T R YMA
O P T O M E T R YRI
Nurse PractitionerMA
O P T O M E T R YCT
Internal MedicineMA
Internal MedicineMA
-MA
Nurse PractitionerMA
Internal MedicineNY

Reviews

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Frequently asked questions

What is ALEJANDRO ESPARZA-PEREZ (M.D.)'s NPI number?
ALEJANDRO ESPARZA-PEREZ (M.D.)'s NPI is 1124098595 — the number used across U.S. healthcare to identify this provider.
Is ALEJANDRO ESPARZA-PEREZ (M.D.) shown as active in public data?
Registry records indicate ALEJANDRO ESPARZA-PEREZ (M.D.) maintains an active NPI.
What expertise is attributed to ALEJANDRO ESPARZA-PEREZ (M.D.)?
ALEJANDRO ESPARZA-PEREZ (M.D.)'s specialty line reads Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Where in Massachusetts is ALEJANDRO ESPARZA-PEREZ (M.D.) registered?
Use Holyoke, Massachusetts as the headline location for ALEJANDRO ESPARZA-PEREZ (M.D.) here.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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