Dr. Gloria E. Zeno Calero, MD
- Medicare services, 2017
- 31
- Part D claims, 2024
- 9,373
- Industry payments
- $529
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 435 Oakmead Parkway, Sunnyvale, CA 94085
- Practice phone
- Call (800) 800-5655
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ascend Clinical
Clinical Lab - Full Service · Sunnyvale, California
Find Dr. Zeno Calero'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. Gloria E. Zeno Calero is an internist in Sunnyvale, California
Dr. Zeno Calero practices at Ascend Clinical in Sunnyvale, California.
Dr. Zeno Calero's NPI, 1164461208, was assigned on June 5, 2006. Dr. Zeno Calero graduated from University Central Del Caribe Escuela De Medicina in 1984. Dr. Zeno Calero holds Puerto Rico license 8488.
- NPI
- 1164461208NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840440905
- NPI enumeration date
- June 5, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 800-5655
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gloria E. Zeno Calero practices at Ascend Clinical in Sunnyvale, California
Dr. Zeno Calero's primary practice is Ascend Clinical, at 435 Oakmead Parkway, Sunnyvale, CA 94085. The practice phone is (800) 800-5655.
- Ascend Clinical435 Oakmead Parkway, Sunnyvale, CA 94085Phone(800) 800-5655
Source: Dmand AI Affiliation Data
Dr. Gloria E. Zeno Calero is affiliated with 2 sites of care and 1 medical group
Dr. Zeno Calero's primary practice is Ascend Clinical in Sunnyvale, California. The medical group on file is Migrant Health Center (MHC). Dmand AI also links Dr. Zeno Calero to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gloria E. Zeno Calero's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zeno Calero practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascend Clinical | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gloria E. Zeno Calero is one of 16,751 internists in California
Internal medicine is Dr. Zeno Calero's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Zeno Calero is licensed in Puerto Rico.
Specialties and state licenses
- Internal medicine, Puerto RicoPrimary
Internists near Dr. Zeno Calero
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. Gloria E. Zeno Calero billed Medicare for 31 services in 2017
CMS data shows 31 Medicare services from Dr. Zeno Calero across 1 procedure code in 2017, all of them office visits. Medicare paid $1,280 for them. Every service was in an office.
Dr. Zeno Calero's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Office and hospital visits
- 2016: 372017: 3116%
Dr. Zeno Calero compared with the California median for internists, 2017
- Dr. Zeno Calero
- California median
- Medicare services
- 31vs 36191% below
- Part D claims
- 8,629vs 42120.5 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Zeno Calero's most billed Medicare procedure codes, 2017
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Zeno Calero?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zeno Calero and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gloria E. Zeno Calero's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Zeno Calero's median patient age at 65, with 53% women.
Dr. Zeno Calero's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Dr. Gloria E. Zeno Calero wrote 9,373 Medicare Part D claims in 2024
In 2024, Dr. Zeno Calero wrote 9,373 Medicare Part D claims for 346 patients. 80% of them were for generic drugs. CMS names the drug for 8,629 of them, across 128 drugs with 11 or more claims each, at $1,014,153 in total drug cost. In 2023, CMS named 8,904 claims across 123 drugs.
Dr. Zeno Calero's Part D claims by kind of drug, 2024
- Generic7,499 claims80%
- Brand-name1,642 claims18%
- Other232 claims2%
Dr. Zeno Calero'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. Zeno Calero's Part D claims, 2024
- Antibiotics1%104 of 9,373 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: 8,9042024: 8,6293%
Drugs named by CMS: 128 in 2024, 123 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. Gloria E. Zeno Calero takes part in Medicare
Dr. Zeno Calero 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Gloria E. Zeno Calero received $529 in industry payments from 2016 to 2025
CMS Open Payments shows 22 general payments to Dr. Zeno Calero from 8 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, $194.
General payments to Dr. Zeno Calero by program year, 2016 to 2025
Companies that paid Dr. Zeno Calero the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gloria E. Zeno Calero graduated from University Central Del Caribe Escuela De Medicina
Dr. Zeno Calero graduated from University Central Del Caribe Escuela De Medicina in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gloria E. Zeno Calero'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 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 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Gloria E. Zeno Calero
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. Gloria E. Zeno Calero's NPI number?
Dr. Gloria E. Zeno Calero's NPI number is 1164461208. It was assigned on June 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gloria E. Zeno Calero?
Dr. Gloria E. Zeno Calero is an internist in Sunnyvale, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Gloria E. Zeno Calero practice?
Dr. Zeno Calero practices at 435 Oakmead Parkway, Sunnyvale, CA 94085. Dr. Zeno Calero's primary practice is Ascend Clinical in Sunnyvale, California. Dmand AI also links Dr. Zeno Calero to 1 group practice or clinic.
What is Dr. Gloria E. Zeno Calero's office phone number?
The practice phone on file for Dr. Zeno Calero is (800) 800-5655.
What is Dr. Gloria E. Zeno Calero's medical license number?
Dr. Zeno Calero holds Puerto Rico license 8488.
What medical group is Dr. Gloria E. Zeno Calero part of?
Dr. Zeno Calero is linked to Migrant Health Center (MHC).
Does Dr. Gloria E. Zeno Calero accept Medicare?
Yes. CMS data shows Dr. Zeno Calero billed Medicare for 31 services in 2017, and Dr. Zeno Calero accepts Medicare assignment.
What services does Dr. Gloria E. Zeno Calero bill to Medicare?
In 2017, Dr. Zeno Calero's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Gloria E. Zeno Calero go to medical school?
Dr. Zeno Calero graduated from University Central Del Caribe Escuela De Medicina in 1984.
What drugs does Dr. Gloria E. Zeno Calero prescribe most?
In 2024 Medicare Part D data, Dr. Zeno Calero's most prescribed drugs by claims were Famotidine, Gabapentin and Atorvastatin Calcium.
Has Dr. Gloria E. Zeno Calero received payments from drug or device companies?
CMS Open Payments shows $529 in general payments to Dr. Zeno Calero from 8 companies from 2016 to 2025. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Gloria E. Zeno Calero been practicing?
Dr. Zeno Calero graduated from medical school in 1984, 42 years ago.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card