DR. BELTON DOUGLAS HALLMARK (M.D.) – Family Medicine Physician, NPI 1225018633

DR. BELTON DOUGLAS HALLMARK (M.D.) is a healthcare provider. based in Castle rock, Colorado. specializing in FAMILY PRACTICE. They hold the professional credentials M.D.. They hold a License No. 23157 (CO). The NPI Number for DR. BELTON DOUGLAS HALLMARK (M.D.) is 1225018633

Main info

Male
47 Years Of Experience
Accepts Medicare Assignment
Name
DR. BELTON DOUGLAS HALLMARK (M.D.)
NPI
1225018633
Phone
(303) 688-3434
Address
1175 S PERRY ST
Enumeration Date
20 January 2006
Last Update Date
11 July 2023

Doctor Profile

Medical School Name
UNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Secondary Phone
3036883434
Graduation Year
1979 (47 years ago)
PAC ID
4082663059
Professional Enrollment ID
I20050117000355
Address ID
CO801041959CA1189XSTXX406
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

2,660 FAMILY PRACTICE in CO

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Provider Addresses for DR. BELTON DOUGLAS HALLMARK (M.D.)

  • 1175, South Perry Street, Castle Rock, Douglas County, Colorado, 80104, United States

    200

    CASTLE ROCK, CO 801041969

    Phone: (303) 688-3434

    Fax: (303) 731-3956

    Type: Mailing

  • PO BOX 17837

    BELFAST, ME 049154073

    Phone: (303) 688-3434

    Fax: (303) 688-4454

    Type: Mailing

  • 1189 S PERRY ST STE 230

    CASTLE ROCK, CO 801041959

    Phone: (303) 688-3434

    Fax: (303) 688-4454

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 183 Open Payments records for all available years, with a total value of $5,281.

Total Amount is formed as General ($5,281) + Research ($0) + Ownership ($0) = $5,281.

Last reported payment date: 2024-12-12 • Largest payer in this snapshot: ABBVIE INC. ($651).

Total Amount

$5,281

General + Research + Ownership

Payments

183

Total payment records

General Amount

$5,281

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-12

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-01-17

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20050117000355IFamily PracticeCOTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
J1071Injection, testosterone cypionate, 1 mg2,20111$0
99214Established patient office or other outpatient visit, 30-39 minutes435175$0
J3301Injection, triamcinolone acetonide, not otherwise specified, 10 mg38344$0
99213Established patient office or other outpatient visit, 20-29 minutes382181$0
96372Injection of drug or substance under skin or into muscle19582$0
View full utilization report →

Insurance plans in this area (ZIP 80104)

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Provider's Procedures

DR. BELTON DOUGLAS HALLMARK (M.D.) performs procedures in FAMILY PRACTICE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
FAMILY MEDICINECO90670Pneumococcal vaccine for injection into muscle2828

Reviews

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Frequently asked questions

What number should I use to identify DR. BELTON DOUGLAS HALLMARK (M.D.) for billing?
Administrative and clinical systems typically use NPI 1225018633 for DR. BELTON DOUGLAS HALLMARK (M.D.).
Should I treat DR. BELTON DOUGLAS HALLMARK (M.D.) as an active provider?
Patients and plans typically see DR. BELTON DOUGLAS HALLMARK (M.D.) as active in the national extract.
What does the directory say DR. BELTON DOUGLAS HALLMARK (M.D.) does?
Insurance directories may phrase it differently, but here DR. BELTON DOUGLAS HALLMARK (M.D.) maps to Family Medicine Physician. Clinical services aligned with this taxonomy classification.
What geographic area is tied to DR. BELTON DOUGLAS HALLMARK (M.D.)?
DR. BELTON DOUGLAS HALLMARK (M.D.) is associated with Castle Rock, Colorado in the same public data insurers reference.
Who maintains DR. BELTON DOUGLAS HALLMARK (M.D.)'s record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

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