Dr. Terrence C Hack , MD, FACC
Internal Medicine • Salinas, CA
950 Circle Dr
Salinas, CA 939052150
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Terrence Hack is listed in NPPES under Internal Medicine.
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NPI assigned on May 10, 2006; this date does not establish years in practice.
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Published CMS data list 66 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 82947 — Blood glucose (sugar) level: 32 service units.
- 81002 — Urinalysis, manual test: 22 service units.
- 93000 — Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report: 12 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 4,232 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Metformin Hcl — 532 prescription fills, including refills.
- Atorvastatin Calcium — 456 prescription fills, including refills.
- Lisinopril — 297 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 62 records in the table · Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Salinas, CA (2024, 27 clinicians with data). Median for this group: 1,625. Middle half: 250 to 4,784.
More Part D prescriptions than 70% of clinicians listed under Internal Medicine in California (2024, 10,795 clinicians with data). Median for this group: 1,254. Middle half: 150 to 4,240.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 54 in 2019 to 66 in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019–2023.
Practice Location & Contact Primary Location
950 Circle Dr
Salinas, CA 939052150
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Ayer, MA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Clinica De Salud Del Valle De Salinas. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
University Of California, San Francisco School Of Medicine
1978
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $386 in 2023
The total amount Medicare approved for these services in 2023. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023.
Paid by Medicare
About $276 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023.
30-day fills
10,016 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$378,671 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2024
All general payments: $49.13 across 2 records.
By nature of payment
- Food and Beverage: $49.13 across 2 records.
Reporting-company totals
- Merck Sharp & Dohme LLC: $49.13 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2024 (published June 30, 2026).
Years since graduation
48 years (graduated 1978)
CMS Doctors and Clinicians data list 1978 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Hack has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Hack as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Salinas and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Salinas, CA (2024, 27 clinicians with data). Median for this group: 1,625. Middle half: 250 to 4,784.
More Part D prescriptions than 70% of clinicians listed under Internal Medicine in California (2024, 10,795 clinicians with data). Median for this group: 1,254. Middle half: 150 to 4,240.
Part D drug cost
A higher Part D drug cost than 75% of clinicians listed under Internal Medicine in Salinas, CA (2024, 27 clinicians with data). Median for this group: $89,028. Middle half: $13,634 to $363,855.
A higher Part D drug cost than 75% of clinicians listed under Internal Medicine in California (2024, 10,795 clinicians with data). Median for this group: $88,105. Middle half: $7,557 to $307,080.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Hack are from 2023.
43 active clinicians are listed under Internal Medicine with a practice address in Salinas, CA (17,717 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Salinas
20.9% of these 43 clinicians have the CMS telehealth indicator.
55.8% of these 43 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 22% from 54 in 2019 to 66 in 2023.
- 2019: 54
- 2020: 31
- 2021: 65
- 2022: 66
- 2023: 66
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Medicare-allowed amount
Medicare-allowed amount went from $414 in 2019 to $386 in 2023.
- 2019: $414
- 2020: $107
- 2021: $226
- 2022: $239
- 2023: $386
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Paid by Medicare
Paid by Medicare went from $414 in 2019 to $276 in 2023.
- 2019: $414
- 2020: $107
- 2021: $226
- 2022: $239
- 2023: $276
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 21% from 3,504 in 2020 to 4,232 in 2024.
- 2020: 3,504
- 2021: 3,674
- 2022: 3,544
- 2023: 3,978
- 2024: 4,232
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30-day fills
30-day fills increased 70% from 5,877 in 2020 to 10,016 in 2024.
- 2020: 5,877
- 2021: 6,555
- 2022: 7,086
- 2023: 8,547
- 2024: 10,016
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Part D drug cost
Part D drug cost increased 284% from $98,584 in 2020 to $378,671 in 2024.
- 2020: $98,584
- 2021: $156,449
- 2022: $181,624
- 2023: $352,417
- 2024: $378,671
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $84.37 in 2019 to $49.13 in 2024.
- 2019: $84.37
- 2022: $57.72
- 2024: $49.13
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $49.13.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
|
GARDASIL | General | $30.68 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
|
GARDASIL | General | $18.45 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2017–2022 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2018–2023; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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82947
Blood glucose (sugar) level
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32 | 29 | $15.00 | $3.85 |
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81002
Urinalysis, manual test
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22 | 19 | $15.00 | $3.41 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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12 | 12 | $35.00 | $15.66 |
Source: CMS Part B by Provider and Service, 2023; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Metformin Hcl | Metformin Hcl | 532 | 42,393 | $3,661.45 | 172 |
| Atorvastatin Calcium | Atorvastatin Calcium | 456 | 36,938 | $3,580.46 | 149 |
| Lisinopril | Lisinopril | 297 | 23,673 | $1,402.89 | 92 |
| Levothyroxine Sodium | Levothyroxine Sodium | 278 | 20,032 | $3,791.39 | 69 |
| Amlodipine Besylate | Amlodipine Besylate | 274 | 21,867 | $1,145.13 | 91 |
| Jardiance | Empagliflozin | 222 | 12,665 | $222,472.10 | 59 |
| Omeprazole | Omeprazole | 193 | 11,835 | $3,378.47 | 51 |
| Losartan Potassium | Losartan Potassium | 184 | 14,953 | $1,405.59 | 58 |
| Hydrochlorothiazide | Hydrochlorothiazide | 152 | 11,896 | $811.78 | 48 |
| Simvastatin | Simvastatin | 91 | 7,440 | $485.15 | 26 |
| Pantoprazole Sodium | Pantoprazole Sodium | 87 | 6,210 | $1,300.86 | 28 |
| Gabapentin | Gabapentin | 83 | 3,263 | $3,797.54 | 21 |
| Glipizide | Glipizide | 81 | 6,714 | $436.91 | 23 |
| Ibuprofen | Ibuprofen | 80 | 2,346 | $409.22 | 26 |
| Tamsulosin Hcl | Tamsulosin Hcl | 74 | 5,190 | $1,450.71 | 20 |
| Glimepiride | Glimepiride | 59 | 4,759 | $495.53 | 16 |
| Metoprolol Tartrate | Metoprolol Tartrate | 57 | 4,620 | $494.72 | 18 |
| Trulicity | Dulaglutide | 52 | 1,792 | $54,508.20 | 13 |
| Clonidine Hcl | Clonidine Hcl | 43 | 2,432 | $149.05 | 11 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 43 | 1,179 | $2,202.54 | — |
| Famotidine | Famotidine | 42 | 3,532 | $578.21 | 13 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 42 | 2,790 | $1,064.00 | 11 |
| Alendronate Sodium | Alendronate Sodium | 37 | 3,094 | $589.64 | 11 |
| Furosemide | Furosemide | 37 | 2,875 | $147.20 | 13 |
| Lisinopril-Hydrochlorothiazide | Lisinopril/Hydrochlorothiazide | 37 | 3,330 | $366.46 | 12 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207R00000X
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.
NUCC Taxonomy Code: 207R00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - FAMILY PRACTICE
I20180223001039
CA
1052386802
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Clinica De Salud Del Valle De Salinas
None, Salinas, CA 93901
Phone: 8317570434
Clinica De Salud Del Valle De Salinas
55 Plaza Cir A, Salinas, CA 939012952
Clinica De Salud Del Valle De Salinas
950 Circle Dr, Salinas, CA 939052150
Phone: 8317576237
Clinica De Salud Del Valle De Salinas
10561 Merritt St, Castroville, CA 950123310
Phone: 8316331514
Clinica De Salud Del Valle De Salinas
219 N Sanborn Rd, Salinas, CA 939052218
Phone: 8317571365
Secondary Practice Locations
190 Groton Rd, 110
Ayer, MA 014321124
Phone: 9787722780
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified)
Nurse Practitioner - Family
Family Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Psychologist
Doctor of Psychology (Psy.D.)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 950 CIRCLE DR, SALINAS, CA 939052150 (Tel: 8317576237)
Registered at 950 CIRCLE DR, SALINAS, CA 939052150 (Tel: 8317576237)
NPI status registered as active in NPPES database
Registered at 190 GROTON RD, 110, AYER, MA 014321124 (Tel: 9787722780)
Registered at 190 GROTON RD, 110, AYER, MA 014321124 (Tel: 9787722780)
Recorded as TERRENCE HACK, M.D., FACC
Internal Medicine (license number reported to NPPES: MA 47871)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Salinas
- Dr. Valerie Choy, MD
- Dr. Colleen Caprio, MD
- Dr. Phillip King, MD
- Dr. Patrick Chen, MD
- Dr. Eva Perusquia Frias, MD
- Dr. James Dacus, MD
Mailing Address
950 Circle Dr
Salinas, CA 939052150
Phone: 8317576237