Dr. Alejandro J. Esparza-Perez, MD
- Medicare services, 2024
- 117
- Medicare patients, 2024
- 42
- Part D claims, 2024
- 5,800
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 30 Center Street, Holyoke, MA 01040
- Practice phone
- Call (413) 536-8761
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Holyoke Health Center
FQHC - Main Site · Holyoke, Massachusetts
Find Dr. Esparza-Perez's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Alejandro J. Esparza-Perez is an internist in Holyoke, Massachusetts
Dr. Esparza-Perez practices at Holyoke Health Center in Holyoke, Massachusetts.
Dr. Esparza-Perez's NPI, 1124098595, was assigned on January 26, 2006. Dr. Esparza-Perez holds Massachusetts license 211045.
- NPI
- 1124098595NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1153515614
- NPI enumeration date
- January 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (413) 536-8761
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alejandro J. Esparza-Perez practices at 2 locations in Holyoke, Massachusetts
Dr. Esparza-Perez's primary practice is Holyoke Health Center, at 30 Center Street, Holyoke, MA 01040 in Hampden County. The practice phone is (413) 536-8761. Dr. Esparza-Perez also practices at Holyoke Health Center Inc., 230 Maple St, Holyoke, MA 01040.
- Holyoke Health CenterPrimary30 Center Street, Holyoke, MA 01040 · Hampden CountyPhone(413) 536-8761
- Holyoke Health Center Inc.230 Maple St, Holyoke, MA 01040 · Hampden CountyPhone(413) 420-2200
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Alejandro J. Esparza-Perez is affiliated with 3 sites of care and 1 medical group
Dr. Esparza-Perez's primary practice is Holyoke Health Center in Holyoke, Massachusetts. Dr. Esparza-Perez is also affiliated with Holyoke Medical Center. The medical group on file is Holyoke Health Center. Dmand AI also links Dr. Esparza-Perez to 1 more home health agency, named with a free account. Dr. Esparza-Perez's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alejandro J. Esparza-Perez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Esparza-Perez practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Holyoke Health Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alejandro J. Esparza-Perez is one of 5,528 internists in Massachusetts
Internal medicine is Dr. Esparza-Perez's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Esparza-Perez is licensed in Massachusetts.
Specialties and state licenses
- Internal medicine, MassachusettsPrimary
Internists near Dr. Esparza-Perez
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Alejandro J. Esparza-Perez billed Medicare for 117 services in 2024
CMS data shows 117 Medicare services from Dr. Esparza-Perez across 2 procedure codes in 2024, for 42 Medicare patients. Medicare paid $745 for them. Every service was in an office.
Dr. Esparza-Perez's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 962024: 11722%
- Other services
- 2023: 122024: 0100%
Dr. Esparza-Perez compared with the Massachusetts median for internists, 2024
- Dr. Esparza-Perez
- Massachusetts median
- Medicare services
- 117vs 43173% below
- Medicare patients
- 42vs 19478% below
- Part D claims
- 5,331vs 40213.3 times
Medians across 5,369 internists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Esparza-Perez's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alejandro J. Esparza-Perez treated 42 Medicare patients in 2024, average age 70
CMS counts 42 Medicare patients who saw Dr. Esparza-Perez in 2024. The largest group is 65 to 74, with 21 patients. 75% of them have high blood pressure, and 74% have high cholesterol. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Esparza-Perez's median patient age at 64, with 48% women.
Dr. Esparza-Perez's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Esparza-Perez's Medicare patients by sex, 2024
- Women1843%
- Men2457%
Chronic conditions among Dr. Esparza-Perez's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Diabetes64%
- Arthritis38%
- Chronic kidney disease36%
- Mood disorders33%
- Depression29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Esparza-Perez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alejandro J. Esparza-Perez wrote 5,800 Medicare Part D claims in 2024
In 2024, Dr. Esparza-Perez wrote 5,800 Medicare Part D claims for 312 patients. 77% of them were for generic drugs. CMS names the drug for 5,331 of them, across 110 drugs with 11 or more claims each, at $390,964 in total drug cost. In 2023, CMS named 6,180 claims across 113 drugs.
Dr. Esparza-Perez's Part D claims by kind of drug, 2024
- Generic4,443 claims77%
- Brand-name992 claims17%
- Other365 claims6%
Dr. Esparza-Perez's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Esparza-Perez's Part D claims, 2024
- Opioids6%328 of 5,800 claims
- Antibiotics0%22 of 5,800 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6,1802024: 5,33114%
Drugs named by CMS: 110 in 2024, 113 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Alejandro J. Esparza-Perez takes part in Medicare
Dr. Esparza-Perez accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Sources for Dr. Alejandro J. Esparza-Perez's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Alejandro J. Esparza-Perez
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Alejandro J. Esparza-Perez's NPI number?
Dr. Alejandro J. Esparza-Perez's NPI number is 1124098595. It was assigned on January 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Alejandro J. Esparza-Perez?
Dr. Alejandro J. Esparza-Perez is an internist in Holyoke, Massachusetts. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Alejandro J. Esparza-Perez practice?
Dr. Esparza-Perez practices at 30 Center Street, Holyoke, MA 01040. Dr. Esparza-Perez also practices at 230 Maple St, Holyoke, MA 01040. Dr. Esparza-Perez's primary practice is Holyoke Health Center in Holyoke, Massachusetts. Dmand AI also links Dr. Esparza-Perez to 1 home health agency.
What is Dr. Alejandro J. Esparza-Perez's office phone number?
The practice phone on file for Dr. Esparza-Perez is (413) 536-8761.
What is Dr. Alejandro J. Esparza-Perez's medical license number?
Dr. Esparza-Perez holds Massachusetts license 211045.
Which hospitals is Dr. Alejandro J. Esparza-Perez affiliated with?
Dr. Esparza-Perez is affiliated with Holyoke Medical Center.
What medical group is Dr. Alejandro J. Esparza-Perez part of?
Dr. Esparza-Perez is linked to Holyoke Health Center.
Does Dr. Alejandro J. Esparza-Perez accept Medicare?
Yes. CMS data shows Dr. Esparza-Perez billed Medicare for 117 services in 2024, and Dr. Esparza-Perez accepts Medicare assignment.
How many Medicare patients does Dr. Alejandro J. Esparza-Perez see?
CMS counts 42 Medicare patients who saw Dr. Esparza-Perez in 2024, with an average age of 70.
What services does Dr. Alejandro J. Esparza-Perez bill to Medicare?
In 2024, Dr. Esparza-Perez's most billed Medicare services were lab and pathology test (82947) and lab and pathology test (83036).
What drugs does Dr. Alejandro J. Esparza-Perez prescribe most?
In 2024 Medicare Part D data, Dr. Esparza-Perez's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
How long has Dr. Alejandro J. Esparza-Perez been practicing?
Dr. Esparza-Perez graduated from medical school in 1997, 29 years ago.
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