CHRISTOPHER J. YIACHOS MD – NPI #1235690256
Internal Medicine

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.

Health Care Provider Taxonomy Code for Internal Medicine

CHRISTOPHER YIACHOS is a physician located in CONCORD, NH. NPPES has assigned the NPI number 1235690256 to CHRISTOPHER YIACHOS on March 31, 2019. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207R00000X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine.

The NPI profile was last updated on Aug 01, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for CHRISTOPHER YIACHOS below.

NPI Profile for
CHRISTOPHER J. YIACHOS

NPI Number
1235690256
Enumeration Date

(more than 7 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
CHRISTOPHER J. YIACHOS
Credentials
MD
Primary location
250 PLEASANT ST STE 6073
CONCORD, NH 03301-2598
Phone: (603) 227-7000 Fax: (603) 227-7588
1 Other location(s):
475 Seaview Ave
Staten Island, NY 10305-3436
Phone: (718) 226-9000
Mailing address
Same as primary location
Sole Proprietor
No
Updated
Certification Date
Aug 01, 2025

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207R00000X
- Internal Medicine (Primary)		 NH 22352
390200000X
- Student in an Organized Health Care Education/Training Program		 244202
208M00000X
- Hospitalist		 NH 22352

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Endpoint

Health Information Exchange (HEI)

HEI is the mobilization of health care information electronically across organizations within a region, community or hospital system. Endpoints provide a simple and secure way for participants to send authenticated, encrypted health information directly to known, trusted recipients over the internet such as primary care physicians, specialists, hospitals, labs, etc.

Endpoint
[email protected]
Endpoint type
Direct Messaging Address
Endpoint Description
CONCORD HOSPITAL DIRECT EMAIL ADDRESS
Content Type
OTHER
Affiliation
N
Endpoint Location
250 PLEASANT ST STE 6073,
CONCORD, NH 77025-1669

Additional Information

Education
STATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER - Graduated 2019
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
CHRISTOPHER YIACHOS is affiliated with the following medical group(s):
  • HOSPITAL
    • CONCORD HOSPITAL
      250 PLEASANT ST
      CONCORD, NH 03301

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.