DR. MARK DANFORTH LACY MD NPI 1134177215

NPI Information

NPI: 1134177215
Provider Name: DR. MARK DANFORTH LACY, MD
Classification: Internal Medicine - 207RI0200X
Specialization: Infectious Disease
Entity Type: Individual
PECOS Registration: Yes
Address: 300 N LEE BLVD
PRESCOTT, AZ
ZIP 86301
Phone: (928) 708-4603

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NPI Details

DR. Mark Danforth Lacy, MD is an infectious disease internal medicine in Prescott, AZ with 43 years of experience. The provider is an internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine. DR. Mark Danforth Lacy, MD NPI is 1134177215. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

The provider's business location address is:

300 N LEE BLVD
PRESCOTT, AZ
ZIP 86301-710
Phone: (928) 708-4603
Fax: (928) 445-9209

The NPI 1134177215 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.

The following top HCPCS codes were publicly reported for this provider under the Medicare program for the year 2016. The reported codes are based on the top codes for each available Medicare specialty, excluding evaluation and management codes.

Follow-up hospital inpatient care per day, typically 35 minutes (HCPCS:99233)
Initial hospital inpatient care per day, typically 30 minutes (HCPCS:99221)
Initial hospital inpatient care per day, typically 50 minutes (HCPCS:99222)
Initial hospital inpatient care per day, typically 70 minutes (HCPCS:99223)
Follow-up hospital inpatient care per day, typically 25 minutes (HCPCS:99232)

The enumeration date for this NPI number is 5/4/2006 and was last updated on 8/13/2025.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No.	Taxonomy Code	Taxonomy Clasification	Taxonomy Specialization	License Number	License State	Primary
1	207R00000X	Internal Medicine		45341	TEXAS	No
2	207RI0200X	Internal Medicine	Infectious Disease	143343	MONTANA	No
3	207RI0200X	Internal Medicine	Infectious Disease	45341	TEXAS	No
4	207RI0200X	Internal Medicine	Infectious Disease	01598	NORTH CAROLINA	No
5	207RI0200X	Internal Medicine	Infectious Disease	MD2020-0241	NEW MEXICO	No
6	208000000X	Pediatrics		MD2020-0241	NEW MEXICO	No
7	208M00000X	Hospitalist		Q8279	TEXAS	No
8	208M00000X	Hospitalist		MD2020-0241	NEW MEXICO	No
9	207RI0200X	Internal Medicine	Infectious Disease	15404	ARIZONA	Yes

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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