Dr. John Joseph Pack , MD
Internal Medicine • Centennial, CO
13111 E Briarwood Ave Ste 250
Centennial, CO 801124149
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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NPI assigned on July 4, 2006; this date does not establish years in practice.
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Published CMS data list 13,486 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99308 — Subsequent nursing facility care with straightforward level of medical decision making, per day: 9,532 service units.
- 99233 — Subsequent hospital care with moderate levelof medical decision making: 1,343 service units.
- 99309 — Subsequent nursing facility care with moderate level of medical decision making, per day: 382 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 23 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 10,384 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:
- Atorvastatin Calcium — 508 prescription fills, including refills.
- Eliquis (Apixaban) — 496 prescription fills, including refills.
- Amlodipine Besylate — 451 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 171 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 95% of clinicians listed under Internal Medicine in Colorado (2024, 857 clinicians with data). Median for this group: 536. Middle half: 228 to 1,054.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 11,026 in 2020 to 13,486 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
13111 E Briarwood Ave Ste 250
Centennial, CO 801124149
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Internal Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
436 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $1,170,369 in 2024
The total amount Medicare approved for these services in 2024. 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, 2024.
Paid by Medicare
About $919,954 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, 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, 2024.
30-day fills
12,488 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
$754,492 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 2022
All general payments: $518.88 across 4 records.
By nature of payment
- Food and Beverage: $518.88 across 4 records.
Reporting-company totals
- Johnson & Johnson Vision Care, Inc.: $395.26 across 3 records.
- ABBVIE INC.: $123.62 across 1 record.
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 2022 (published June 30, 2026).
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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. Pack 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. Pack 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 Centennial and Colorado
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 95% of clinicians listed under Internal Medicine in Colorado (2024, 857 clinicians with data). Median for this group: 536. Middle half: 228 to 1,054.
Too few clinicians listed under Internal Medicine in Centennial have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Internal Medicine in Colorado (2024, 857 clinicians with data). Median for this group: $50,687. Middle half: $22,052 to $86,505.
Too few clinicians listed under Internal Medicine in Centennial have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Internal Medicine in Colorado (2024, 857 clinicians with data). Median for this group: $36,967. Middle half: $16,464 to $63,849.
Too few clinicians listed under Internal Medicine in Centennial have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 75% of clinicians listed under Internal Medicine in Centennial, CO (2024, 18 clinicians with data). Median for this group: 3,037. Middle half: 490 to 9,245.
More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Colorado (2024, 1,068 clinicians with data). Median for this group: 1,260. Middle half: 102 to 4,471.
Part D drug cost
A higher Part D drug cost than 85% of clinicians listed under Internal Medicine in Centennial, CO (2024, 18 clinicians with data). Median for this group: $370,048. Middle half: $44,199 to $650,303.
A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Colorado (2024, 1,068 clinicians with data). Median for this group: $102,658. Middle half: $5,184 to $333,265.
25 active clinicians are listed under Internal Medicine with a practice address in Centennial, CO (2,048 in Colorado).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Centennial
20% of these 25 clinicians have the CMS telehealth indicator.
40% of these 25 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 11,026 in 2020 to 13,486 in 2024.
- 2020: 11,026
- 2021: 11,690
- 2022: 11,018
- 2023: 13,530
- 2024: 13,486
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $1,095,487 in 2020 and $1,170,369 in 2024.
- 2020: $1,095,487
- 2021: $1,085,014
- 2022: $950,330
- 2023: $1,254,120
- 2024: $1,170,369
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Paid by Medicare
Paid by Medicare varied from year to year: $864,700 in 2020 and $919,954 in 2024.
- 2020: $864,700
- 2021: $857,406
- 2022: $746,876
- 2023: $987,021
- 2024: $919,954
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 28% from 8,081 in 2020 to 10,384 in 2024.
- 2020: 8,081
- 2021: 8,960
- 2022: 10,251
- 2023: 10,815
- 2024: 10,384
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30-day fills
30-day fills increased 23% from 10,136 in 2020 to 12,488 in 2024.
- 2020: 10,136
- 2021: 10,889
- 2022: 12,358
- 2023: 12,851
- 2024: 12,488
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Part D drug cost
Part D drug cost increased 29% from $585,322 in 2020 to $754,492 in 2024.
- 2020: $585,322
- 2021: $723,233
- 2022: $733,744
- 2023: $719,913
- 2024: $754,492
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $109.01 in 2021 to $518.88 in 2022.
- 2021: $109.01
- 2022: $518.88
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2022), 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 2022 (payments made January 1 – December 31, 2022): fewer than 11 records totaling $518.88.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Johnson & Johnson Vision Care, Inc. |
Food and Beverage
In-kind items and services
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Acuvue | General | $151.07 |
| Johnson & Johnson Vision Care, Inc. |
Food and Beverage
In-kind items and services
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Acuvue | General | $133.15 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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VUITY | General | $123.62 |
| Johnson & Johnson Vision Care, Inc. |
Food and Beverage
In-kind items and services
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Acuvue | General | $111.04 |
Source: CMS Open Payments, program year 2022, 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 2016–2023 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, 2017–2024; 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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99308
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
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9,532 | 221 | $151.56 | $77.91 |
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99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
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1,343 | 137 | $250.00 | $121.22 |
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99309
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
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382 | 47 | $174.74 | $112.26 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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351 | 20 | $150.00 | $80.55 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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306 | 94 | $154.66 | $131.94 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
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221 | 151 | $400.00 | $177.04 |
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99497
Advance care planning, first 30 minutes
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192 | 121 | $175.00 | $77.49 |
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99306
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more
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190 | 119 | $250.00 | $188.36 |
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36410
Insertion of needle into vein (3 years or older)
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176 | 84 | $30.00 | $18.52 |
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99239
Hospital discharge day management, more than 30 minutes
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118 | 71 | $150.00 | $118.30 |
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93922
Ultrasound study of arm and leg arteries
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106 | 86 | $149.58 | $93.53 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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96 | 18 | $104.69 | $95.32 |
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81002
Urinalysis, manual test
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93 | 71 | $16.00 | $3.41 |
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83518
Analysis of substance using immunoassay technique, single step method
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93 | 71 | $30.00 | $9.45 |
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99497
Advance care planning, first 30 minutes
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83 | 71 | $100.00 | $86.27 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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57 | 57 | $182.02 | $138.33 |
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99316
Nursing facility discharge management, more than 30 minutes
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49 | 40 | $150.00 | $135.44 |
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82274
Stool analysis for blood, by fecal hemoglobin determination by immunoassay
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23 | 23 | $30.00 | $15.60 |
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90658
Influenza vaccine, trivalent, 0.5 ml dosage
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19 | 18 | $59.74 | $21.42 |
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G0008
Administration of influenza virus vaccine
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19 | 18 | $56.58 | $35.02 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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13 | 12 | $60.00 | $14.23 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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12 | 12 | $200.00 | $177.94 |
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G0180
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
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12 | 12 | $100.00 | $58.08 |
Source: CMS Part B by Provider and Service, 2024; 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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 508 | 18,611 | $6,654.77 | 85 |
| Eliquis | Apixaban | 496 | 7,790 | $160,458.11 | 53 |
| Amlodipine Besylate | Amlodipine Besylate | 451 | 15,335 | $2,928.03 | 84 |
| Pantoprazole Sodium | Pantoprazole Sodium | 346 | 9,726 | $9,631.18 | 57 |
| Gabapentin | Gabapentin | 289 | 7,798 | $4,611.76 | 48 |
| Furosemide | Furosemide | 289 | 8,976 | $1,987.19 | 57 |
| Losartan Potassium | Losartan Potassium | 280 | 9,981 | $2,920.30 | 53 |
| Lisinopril | Lisinopril | 275 | 10,638 | $2,055.60 | 42 |
| Levothyroxine Sodium | Levothyroxine Sodium | 275 | 13,557 | $2,897.23 | 57 |
| Famotidine | Famotidine | 239 | 6,428 | $2,364.12 | 39 |
| Hydralazine Hcl | Hydralazine Hcl | 215 | 6,906 | $4,943.70 | 33 |
| Quetiapine Fumarate | Quetiapine Fumarate | 202 | 5,478 | $2,955.58 | 26 |
| Potassium Chloride | Potassium Chloride | 184 | 6,458 | $4,154.86 | 43 |
| Sertraline Hcl | Sertraline Hcl | 179 | 6,397 | $1,540.03 | 44 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 164 | 2,217 | $2,601.91 | 29 |
| Metformin Hcl | Metformin Hcl | 153 | 5,522 | $1,386.56 | 25 |
| Clopidogrel | Clopidogrel Bisulfate | 142 | 4,828 | $1,881.91 | 26 |
| Levetiracetam | Levetiracetam | 140 | 3,129 | $5,095.29 | 20 |
| Metoprolol Tartrate | Metoprolol Tartrate | 135 | 4,271 | $1,563.67 | 25 |
| Mirtazapine | Mirtazapine | 133 | 3,612 | $3,546.74 | 19 |
| Oxycodone Hcl | Oxycodone Hcl | 129 | 1,537 | $1,729.12 | 15 |
| Januvia | Sitagliptin Phosphate | 125 | 2,834 | $53,683.54 | 11 |
| Metoprolol Succinate | Metoprolol Succinate | 110 | 5,057 | $1,564.87 | 28 |
| Zolpidem Tartrate | Zolpidem Tartrate | 108 | 2,997 | $604.27 | 24 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 105 | 4,848 | $1,551.84 | 23 |
(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
Self-certified to NPPES: 2026-06-23NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - INTERNAL MEDICINE
I20100311000975
CA
0244365575
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Internal 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 13111 E BRIARWOOD AVE STE 250, CENTENNIAL, CO 801124149 (Tel: 3038051800)
Registered at PO BOX 24, CONIFER, CO 804330024
Internal Medicine (license number reported to NPPES: CO DR.0075395)
NPI status registered as active in NPPES database
Registered at 4560 ADMIRALTY WAY, SUITE 356, MARINA DEL REY, CA 90292 (Tel: 3108228584)
Registered at PO BOX 928, MANHATTAN BEACH, CA 90267 (Tel: 3108228584)
Recorded as JOHN PACK, MD
Internal Medicine (license number reported to NPPES: CA G078330)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Internal Medicine Providers in Centennial
- Dr. Jill Schofield, MD
- Dr. Arthur Burroughs, MD
- Dr. Jacques Saari, MD
- Dr. Kin Chan, MD
- Dr. Alan Aboaf, MD
- Dr. Andrew Williams, MD
Mailing Address
Po Box 24
Conifer, CO 804330024