DR. ANN M HADDENHORST (M.D.) – Internal Medicine Physician, NPI 1235134289

DR. ANN M HADDENHORST (M.D.) is a healthcare provider. based in Colorado springs, Colorado. specializing in Internal Medicine Physician. They hold the professional credentials M.D.. They hold a License No. 41561 (CO). The NPI Number for DR. ANN M HADDENHORST (M.D.) is 1235134289

Main info

Female
37 Years Of Experience
Accepts Medicare Assignment
Name
DR. ANN M HADDENHORST (M.D.)
NPI
1235134289
Phone
(719) 633-5515
Address
175 S UNION BLVD
Enumeration Date
16 June 2005
Last Update Date
19 March 2020

Doctor Profile

Medical School Name
UNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Secondary Phone
7196335515
Graduation Year
1989 (37 years ago)
PAC ID
6406945039
Group Practice PAC ID
9638208549
Professional Enrollment ID
I20100126000049
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

Loading map...

Provider Addresses for DR. ANN M HADDENHORST (M.D.)

  • Printers Park Medical Plaza, 175, South Union Boulevard, Colorado Springs, El Paso County, Colorado, 80920, United States

    SUITE 350

    COLORADO SPRINGS, CO 809103113

    Phone: (719) 633-5515

    Fax: (719) 471-2258

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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: 2010-01-26

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
I20100126000049IInternal MedicineCOTBD

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 80910)

Loading plans...

Provider's Procedures

DR. ANN M HADDENHORST (M.D.) performs procedures in Internal Medicine Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERNAL MEDICINECO81002Urinalysis, manual test2119

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 9638208549View full group profile

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

How is DR. ANN M HADDENHORST (M.D.) identified in CMS data?
CMS-hosted NPPES data lists DR. ANN M HADDENHORST (M.D.) with NPI 1235134289.
Is DR. ANN M HADDENHORST (M.D.) listed as active for patients and plans?
The listing shows DR. ANN M HADDENHORST (M.D.) as active in the NPI system.
What is DR. ANN M HADDENHORST (M.D.)'s specialty?
The listing groups DR. ANN M HADDENHORST (M.D.) with Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
What area does DR. ANN M HADDENHORST (M.D.) serve?
DR. ANN M HADDENHORST (M.D.)'s listing highlights Colorado Springs, Colorado; more addresses can appear in NPPES.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

Similar Providers

Unknown Individual

Internal Medicine Physician
East Woodmen Road, Colorado Springs, El Paso County, Colorado, 80927, United States of America
NPI: 1558364638

SUMMIT MEDICAL CLINIC, PC

Internal Medicine Physician
1380, East Fillmore Street, Papeton, Colorado Springs, El Paso County, Colorado, 80907, United States
NPI: 1992709653

DR. IWONA NIMPTSCH-KOSSEK (MD)

Internal Medicine Physician
Penrose-St. Francis Urgent Care, 3027, North Circle Drive, Papeton, Colorado Springs, El Paso County, Colorado, 80909, United States
NPI: 1205830866

DR. MICHAEL WILLIAM SPANGLER (D.O.)

Internal Medicine Physician
Printers Park Medical Plaza, 175, South Union Boulevard, Colorado Springs, El Paso County, Colorado, 80920, United States
NPI: 1841294295

DR. JANAK G JOSHI (MD)

Internal Medicine Physician
North Union Boulevard, Colorado Springs, El Paso County, Colorado, 1875, United States
NPI: 1104820539

DR. JAMES MURRAY III KINSMAN (M.D.)

Internal Medicine Physician
Printers Park Medical Plaza, 175, South Union Boulevard, Colorado Springs, El Paso County, Colorado, 80920, United States
NPI: 1528062957

DR. JOSEPH HYON-BAE KIM (M.D.)

Internal Medicine Physician
Printers Park Medical Plaza, 175, South Union Boulevard, Colorado Springs, El Paso County, Colorado, 80920, United States
NPI: 1477557890

DR. CATHERINE ANN HATCHELL (M.D.)

Internal Medicine Physician
Printers Park Medical Plaza, 175, South Union Boulevard, Colorado Springs, El Paso County, Colorado, 80920, United States
NPI: 1225033251

DR. ROBERT HOOD REEVES (M.D.)

Internal Medicine Physician
Printers Park Medical Plaza, 175, South Union Boulevard, Colorado Springs, El Paso County, Colorado, 80920, United States
NPI: 1033114053