AASHISH DEWAN MD
Complete NPI Record 1619506979
Family Medicine in Olney, MD

Active since April 07, 2020PECOS EnrolledAccepts Medicare Assignment
18109 PRINCE PHILIP DR STE B200, OLNEY, MD 20832(240) 883-9791 Get Directions

NPPES record last updated: April 11, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Apr 11, 2025, Sep 8, 2023, Dec 10, 2022 and 1 more (4 updates tracked since 2020).

Complete NPI Dataset

This page contains the complete raw NPPES record for Aashish Dewan, MD (NPI 1619506979), an individual family medicine provider in Olney, MD. All 40 fields on file are listed with their current values and official NPPES definitions, exactly as recorded in the National Plan and Provider Enumeration System. Only fields that contain data are included, so the number of fields shown varies from one NPI record to another.

Use the tools below to filter fields by category, search within the record, or jump straight to a specific field. You can download the full record as a CSV, JSON, or text file, or filter first and export only the fields you need. The Print Clean Summary button produces a printer-friendly copy of the record.

Registry File Document Utilities
NPI: 1619506979
Field 1/40
The 10-position all-numeric identification number assigned by the NPS to uniquely identify a health care provider. The NPI number includes an ISO standard check-digit in the 10th position. There is no intelligence about the health care provider in the number.
Entity Type Code: 1
Field 2/40
Code describing the type of health care provider that is being assigned an NPI. Codes are 1 = (Person): individual human being who furnishes health care; 2 = (Non-person): entity other than an individual human being that furnishes health care (for example, hospital, SNF, hospital subunit, pharmacy, or HMO).
Provider Last Name Legal Name: DEWAN
Field 3/40
The last name of the provider. If the provider is an individual, this is the legal name.
Provider First Name: AASHISH
Field 4/40
The first name of the provider, if the provider is an individual.
Provider Credential Text: MD
Field 5/40
The abbreviations for professional degrees or credentials used or held by the provider, if the provider is an individual. Examples are MD, DDS, CSW, CNA, AA, NP, RNA, or PSY. These credential designations will not be verified by NPS.
Provider First Line Business Mailing Address: 11403 BROOK RUN DR
Field 6/40
The first line mailing address of the provider being identified. This data element may contain the same information as "Provider first line location address".
Provider Business Mailing Address City Name: GERMANTOWN
Field 7/40
The city name in the mailing address of the provider being identified.
Provider Business Mailing Address State Name: MD
Field 8/40
The State or Province name in the mailing address of the provider being identified. This data element may contain the same information as "Provider location address State name".
Provider Business Mailing Address Postal Code: 208766021
Field 9/40
The postal ZIP or zone code in the mailing address of the provider being identified. NOTE: ZIP code plus 4-digit extension, if available. This data element may contain the same information as "Provider location address postal code".
Provider Business Mailing Address Country Code If outside U S : US
Field 10/40
The country code in the mailing address of the provider being identified. This data element may contain the same information as "Provider location address country code".
Provider Business Mailing Address Telephone Number: 3018327858
Field 11/40
The telephone number associated with mailing address of the provider being identified. This data element may contain the same information as "Provider location address telephone number".
Provider First Line Business Practice Location Address: 18109 PRINCE PHILIP DR STE B200
Field 12/40
The first line location address of the provider being identified. For providers with more than one physical location, this is the primary location. This address cannot include a Post Office box.
Provider Business Practice Location Address City Name: OLNEY
Field 13/40
The city name in the location address of the provider being identified.
Provider Business Practice Location Address State Name: MD
Field 14/40
The State code in the location of the provider being identified.
Provider Business Practice Location Address Postal Code: 208321591
Field 15/40
The postal ZIP or zone code in the location address of the provider being identified. NOTE: ZIP code plus 4-digit extension, if available.
Provider Business Practice Location Address Country Code If outside U S : US
Field 16/40
The country code in the location address of the provider being identified.
Provider Business Practice Location Address Telephone Number: 2408839791
Field 17/40
The telephone number associated with the location address of the provider being identified.
Provider Gender Code: M
Field 20/40
The code designating the provider's gender if the provider is a person.
Healthcare Provider Taxonomy Code 1: 207Q00000X
Field 21/40
This field represents the provider's taxonomy code, which classifies their type, classification, and area of specialization. This code comes from the Healthcare Provider Taxonomy Code Set maintained by the National Uniform Claim Committee (NUCC). The NPS will associate these data with the license data for providers with Entity type code = 1.
Provider License Number 1: MD600001864
Field 22/40
The license number issued to the provider being identified. The NPS can accommodate multiple license numbers for multiple specialties and for multiple States. The NPS will associate this data element with "provider taxonomy code".
Provider License Number State Code 1: DC
Field 23/40
The two-letter state code representing the U.S. state or territory that issued the provider's license. This field is linked to the Provider License Number field and identifies the jurisdiction where that license is valid. A provider may have multiple state codes if they hold licenses in more than one state.
Healthcare Provider Primary Taxonomy Switch 1: N
Field 24/40
This field shows whether the related taxonomy code is the provider's primary specialty. It is a single-character value: "Y" indicates the taxonomy is the primary one, while "N" indicates it is not. Each provider record can have only one taxonomy code marked as primary.
Healthcare Provider Taxonomy Code 2: 207Q00000X
Field 25/40
This field represents the provider's taxonomy code, which classifies their type, classification, and area of specialization. This code comes from the Healthcare Provider Taxonomy Code Set maintained by the National Uniform Claim Committee (NUCC). The NPS will associate these data with the license data for providers with Entity type code = 1.
Provider License Number 2: 156122
Field 26/40
The license number issued to the provider being identified. The NPS can accommodate multiple license numbers for multiple specialties and for multiple States. The NPS will associate this data element with "provider taxonomy code".
Provider License Number State Code 2: FL
Field 27/40
The two-letter state code representing the U.S. state or territory that issued the provider's license. This field is linked to the Provider License Number field and identifies the jurisdiction where that license is valid. A provider may have multiple state codes if they hold licenses in more than one state.
Healthcare Provider Primary Taxonomy Switch 2: N
Field 28/40
This field shows whether the related taxonomy code is the provider's primary specialty. It is a single-character value: "Y" indicates the taxonomy is the primary one, while "N" indicates it is not. Each provider record can have only one taxonomy code marked as primary.
Healthcare Provider Taxonomy Code 3: 390200000X
Field 29/40
This field represents the provider's taxonomy code, which classifies their type, classification, and area of specialization. This code comes from the Healthcare Provider Taxonomy Code Set maintained by the National Uniform Claim Committee (NUCC). The NPS will associate these data with the license data for providers with Entity type code = 1.
Healthcare Provider Primary Taxonomy Switch 3: N
Field 30/40
This field shows whether the related taxonomy code is the provider's primary specialty. It is a single-character value: "Y" indicates the taxonomy is the primary one, while "N" indicates it is not. Each provider record can have only one taxonomy code marked as primary.
Healthcare Provider Taxonomy Code 4: 207Q00000X
Field 31/40
This field represents the provider's taxonomy code, which classifies their type, classification, and area of specialization. This code comes from the Healthcare Provider Taxonomy Code Set maintained by the National Uniform Claim Committee (NUCC). The NPS will associate these data with the license data for providers with Entity type code = 1.
Provider License Number 4: D98444
Field 32/40
The license number issued to the provider being identified. The NPS can accommodate multiple license numbers for multiple specialties and for multiple States. The NPS will associate this data element with "provider taxonomy code".
Provider License Number State Code 4: MD
Field 33/40
The two-letter state code representing the U.S. state or territory that issued the provider's license. This field is linked to the Provider License Number field and identifies the jurisdiction where that license is valid. A provider may have multiple state codes if they hold licenses in more than one state.
Healthcare Provider Primary Taxonomy Switch 4: Y
Field 34/40
This field shows whether the related taxonomy code is the provider's primary specialty. It is a single-character value: "Y" indicates the taxonomy is the primary one, while "N" indicates it is not. Each provider record can have only one taxonomy code marked as primary.
Healthcare Provider Taxonomy Code 5: 207Q00000X
Field 35/40
This field represents the provider's taxonomy code, which classifies their type, classification, and area of specialization. This code comes from the Healthcare Provider Taxonomy Code Set maintained by the National Uniform Claim Committee (NUCC). The NPS will associate these data with the license data for providers with Entity type code = 1.
Provider License Number 5: 0101279871
Field 36/40
The license number issued to the provider being identified. The NPS can accommodate multiple license numbers for multiple specialties and for multiple States. The NPS will associate this data element with "provider taxonomy code".
Provider License Number State Code 5: VA
Field 37/40
The two-letter state code representing the U.S. state or territory that issued the provider's license. This field is linked to the Provider License Number field and identifies the jurisdiction where that license is valid. A provider may have multiple state codes if they hold licenses in more than one state.
Healthcare Provider Primary Taxonomy Switch 5: N
Field 38/40
This field shows whether the related taxonomy code is the provider's primary specialty. It is a single-character value: "Y" indicates the taxonomy is the primary one, while "N" indicates it is not. Each provider record can have only one taxonomy code marked as primary.
Is Sole Proprietor: N
Field 39/40
Indicates whether the provider is registered as a sole proprietor. This is a single-character code: "Y" means the provider operates as a sole proprietor, and "N" means they do not.

Secondary Practice Locations 3

The first line of the secondary practice location address of the provider being identified. For providers with more than one physical location, this is a secondary practice location address. This address cannot include a Post Office box.

400 W 7th St
Location 1/3
Frederick, MD 21701-4506 · Phone (240) 566-3300
1600 S Andrews Ave
Location 2/3
Fort Lauderdale, FL 33316-2510 · Phone (301) 832-7858
12220 Rockville Pike
Location 3/3
Rockville, MD 20852-1608 · Phone (855) 910-3278
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