Dr. Jose Guillermo Pastrana Sr., MD
- Part D claims, 2024
- 3,956
- Industry payments
- $2,448
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1785 Carr 21, San Juan, PR 00921
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
D'Mujer Health and Prevention Center - San Juan
Mammography / Breast Imaging Center · San Juan, Puerto Rico
Find Dr. Pastrana'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. Jose Guillermo Pastrana Sr. is a general practice physician in San Juan, Puerto Rico
Dr. Pastrana practices at D'Mujer Health and Prevention Center - San Juan in San Juan, Puerto Rico.
Dr. Pastrana's NPI, 1861462186, was assigned on January 26, 2006. Dr. Pastrana holds Puerto Rico license 9120.
- NPI
- 1861462186NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365602315
- NPI enumeration date
- January 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jose Guillermo Pastrana Sr. practices at D'Mujer Health and Prevention Center - San Juan in San Juan, Puerto Rico
Dr. Pastrana's primary practice is D'Mujer Health and Prevention Center - San Juan, at 1785 Carr 21, San Juan, PR 00921.
- D'Mujer Health and Prevention Center - San Juan1785 Carr 21, San Juan, PR 00921
Source: Dmand AI Affiliation Data
Dr. Jose Guillermo Pastrana Sr. is affiliated with 1 site of care
Dr. Pastrana's primary practice is D'Mujer Health and Prevention Center - San Juan in San Juan, Puerto Rico.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jose Guillermo Pastrana Sr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pastrana practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| D'Mujer Health and Prevention Center - San Juan | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jose Guillermo Pastrana Sr. is one of 2,604 general practice physicians in Puerto Rico
General practice is Dr. Pastrana's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Pastrana is licensed in Puerto Rico.
Specialties and state licenses
- General practice, Puerto RicoPrimary
General practice physicians near Dr. Pastrana
Counts of general practice physicians 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. Jose Guillermo Pastrana Sr.'s patients have a median age of 90
Across all payers, Dmand AI patient panel data puts Dr. Pastrana's median patient age at 90, with 100% women.
Dr. Pastrana's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 90
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Jose Guillermo Pastrana Sr. wrote 3,956 Medicare Part D claims in 2024
In 2024, Dr. Pastrana wrote 3,956 Medicare Part D claims for 246 patients. 88% of them were for generic drugs. CMS names the drug for 3,524 of them, across 73 drugs with 11 or more claims each, at $154,985 in total drug cost. In 2023, CMS named 3,531 claims across 69 drugs.
Dr. Pastrana's Part D claims by kind of drug, 2024
- Generic3,476 claims88%
- Brand-name419 claims11%
- Other61 claims2%
Dr. Pastrana'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. Pastrana's Part D claims, 2024
- Opioids0%18 of 3,956 claims
- Antibiotics2%70 of 3,956 claims
- Antipsychotics, patients 65 and over0%15 of 3,956 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: 3,5312024: 3,524No change
Drugs named by CMS: 73 in 2024, 69 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. Jose Guillermo Pastrana Sr. takes part in Medicare
Dr. Pastrana 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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Dr. Jose Guillermo Pastrana Sr. received $2,448 in industry payments from 2016 to 2025
CMS Open Payments shows 98 general payments to Dr. Pastrana from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $767.
General payments to Dr. Pastrana by program year, 2016 to 2025
General payments to Dr. Pastrana by kind, 2016 to 2025
- Food and beverage$2,437100%
- Education$110%
Companies that paid Dr. Pastrana the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jose Guillermo Pastrana Sr.'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Industry payments | Open Payments (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. Jose Guillermo Pastrana Sr.
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. Jose Guillermo Pastrana Sr.'s NPI number?
Dr. Jose Guillermo Pastrana Sr.'s NPI number is 1861462186. It was assigned on January 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jose Guillermo Pastrana Sr.?
Dr. Jose Guillermo Pastrana Sr. is a general practice physician in San Juan, Puerto Rico. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Jose Guillermo Pastrana Sr. practice?
Dr. Pastrana practices at 1785 Carr 21, San Juan, PR 00921. Dr. Pastrana's primary practice is D'Mujer Health and Prevention Center - San Juan in San Juan, Puerto Rico.
What is Dr. Jose Guillermo Pastrana Sr.'s medical license number?
Dr. Pastrana holds Puerto Rico license 9120.
Does Dr. Jose Guillermo Pastrana Sr. accept Medicare?
Yes. CMS lists Dr. Pastrana as accepting Medicare assignment.
What drugs does Dr. Jose Guillermo Pastrana Sr. prescribe most?
In 2024 Medicare Part D data, Dr. Pastrana's most prescribed drugs by claims were Simvastatin, Lisinopril and Amlodipine Besylate.
Has Dr. Jose Guillermo Pastrana Sr. received payments from drug or device companies?
CMS Open Payments shows $2,448 in general payments to Dr. Pastrana from 12 companies from 2016 to 2025. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Jose Guillermo Pastrana Sr. been practicing?
Dr. Pastrana graduated from medical school in 1986, 40 years ago.
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