DR. DUANE M GELS MD
Complete NPI Record 1609875319
Allergy & Immunology in Annapolis, MD

Active since July 15, 2005PECOS EnrolledAccepts Medicare Assignment
129 LUBRANO DR, SUITE 200, ANNAPOLIS, MD 21401(410) 573-1600(410) 573-5841 Get Directions

NPPES record last updated: November 30, 2015. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Complete NPI Dataset

This page contains the complete raw NPPES record for Dr. Duane M Gels, MD (NPI 1609875319), an individual allergy & immunology provider in Annapolis, MD. All 65 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.

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Registry File Document Utilities
NPI: 1609875319
Field 1/65
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 2/65
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: GELS
Field 3/65
The last name of the provider. If the provider is an individual, this is the legal name.
Provider First Name: DUANE
Field 4/65
The first name of the provider, if the provider is an individual.
Provider Middle Name: M
Field 5/65
The middle name of the provider, if the provider is an individual.
Provider Name Prefix Text: DR.
Field 6/65
The name prefix or salutation of the provider if the provider is an individual; for example, Mr., Mrs., or Corporal.
Provider Credential Text: MD
Field 7/65
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: PO BOX 7801
Field 8/65
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: BELFAST
Field 9/65
The city name in the mailing address of the provider being identified.
Provider Business Mailing Address State Name: ME
Field 10/65
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: 049157800
Field 11/65
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 12/65
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: 4105731600
Field 13/65
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 Business Mailing Address Fax Number: 4105735841
Field 14/65
The fax number associated with the mailing address of the provider being identified. This data element may contain the same information as "Provider location address fax number".
Provider First Line Business Practice Location Address: 129 LUBRANO DR
Field 15/65
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 Second Line Business Practice Location Address: SUITE 200
Field 16/65
The second 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: ANNAPOLIS
Field 17/65
The city name in the location address of the provider being identified.
Provider Business Practice Location Address State Name: MD
Field 18/65
The State code in the location of the provider being identified.
Provider Business Practice Location Address Postal Code: 214017564
Field 19/65
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 20/65
The country code in the location address of the provider being identified.
Provider Business Practice Location Address Telephone Number: 4105731600
Field 21/65
The telephone number associated with the location address of the provider being identified.
Provider Business Practice Location Address Fax Number: 4105735841
Field 22/65
The fax number associated with the location address of the provider being identified.
Provider Gender Code: M
Field 25/65
The code designating the provider's gender if the provider is a person.
Healthcare Provider Taxonomy Code 1: 207K00000X
Field 26/65
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: D0040281
Field 27/65
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: MD
Field 28/65
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: Y
Field 29/65
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.
Other Provider Identifier 1: 597234
Field 30/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 1: 01
Field 31/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier Issuer 1: AETNA PPO
Field 32/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 2: 0001
Field 33/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 2: 01
Field 34/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier Issuer 2: BCBS
Field 35/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 3: 2623527
Field 36/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 3: 01
Field 37/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier Issuer 3: AETNA HMO
Field 38/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 4: 52073512
Field 39/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 4: 01
Field 40/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier Issuer 4: BCBS
Field 41/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 5: Y9760001
Field 42/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 5: 01
Field 43/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier Issuer 5: CAREFIRST
Field 44/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 6: Y9730001
Field 45/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 6: 01
Field 46/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier Issuer 6: CAREFIRST
Field 47/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 7: Y9740001
Field 48/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 7: 01
Field 49/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier Issuer 7: CAREFIRST
Field 50/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 8: 355610
Field 51/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 8: 01
Field 52/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier Issuer 8: MAMSI
Field 53/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 9: 52073518
Field 54/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 9: 01
Field 55/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier State 9: MD
Field 56/65
The two-letter state code representing the U.S. state or territory that issued the additional provider identifier. This links the Other Provider Identifier to the state where it is valid or was assigned.
Other Provider Identifier Issuer 9: BCBS
Field 57/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 10: F1570001
Field 58/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 10: 01
Field 59/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier Issuer 10: BCBS DC
Field 60/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Other Provider Identifier 11: 52073519
Field 61/65
An additional identifier number for the provider, either current or previously used. This may include IDs issued by health plans, state agencies, or other organizations. The value is collected from the NPI application or update form.
Other Provider Identifier Type Code 11: 01
Field 62/65
A code that specifies the type of additional identifier associated with the provider, either current or past. Examples include UPIN (Universal Provider Identification Number), NSC (National Supplier Clearinghouse), OSCAR (CMS Certification Number), DEA (Drug Enforcement Administration number), state Medicaid ID, or a plan-specific PIN. The value is collected from the NPI application or update form.
Other Provider Identifier State 11: MD
Field 63/65
The two-letter state code representing the U.S. state or territory that issued the additional provider identifier. This links the Other Provider Identifier to the state where it is valid or was assigned.
Other Provider Identifier Issuer 11: BCBS
Field 64/65
The name of the organization, agency, or health plan that assigned the additional provider identifier. This identifies who issued the number linked to Other Provider Identifier 1 (for example, a state Medicaid agency, Medicare, or a private insurance company).
Is Sole Proprietor: Y
Field 65/65
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.

Other Provider Identifiers 19

Legacy and payer-issued identifiers reported to the NPPES registry for this provider.

225140YHBZ Medicare PIN
Identifier 1/19
Medicare PIN: Used in legacy data fields alongside a healthcare provider's National Provider Identifier (NPI) to designate legacy Medicare provider numbers.
52073512 Other
Identifier 2/19
Issuer: Bcbs
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
Y9740001 Other
Identifier 3/19
Issuer: Carefirst
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
597234 Other
Identifier 4/19
Issuer: Aetna Ppo
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
2623527 Other
Identifier 5/19
Issuer: Aetna Hmo
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
200865YHB3 Medicare PIN
Identifier 6/19
Medicare PIN: Used in legacy data fields alongside a healthcare provider's National Provider Identifier (NPI) to designate legacy Medicare provider numbers.
Y9760001 Other
Identifier 7/19
Issuer: Carefirst
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
755R Medicare PIN
Identifier 8/19
Medicare PIN: Used in legacy data fields alongside a healthcare provider's National Provider Identifier (NPI) to designate legacy Medicare provider numbers.
030005125 Medicare PIN
Identifier 9/19
Medicare PIN: Used in legacy data fields alongside a healthcare provider's National Provider Identifier (NPI) to designate legacy Medicare provider numbers.
355610 Other
Identifier 10/19
Issuer: Mamsi
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
52073518 Other
Identifier 11/19
State: MD · Issuer: Bcbs
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
F1570001 Other
Identifier 12/19
Issuer: Bcbs Dc
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
52073519 Other
Identifier 13/19
State: MD · Issuer: Bcbs
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
225140 Medicare PIN
Identifier 14/19
State: MD
Medicare PIN: Used in legacy data fields alongside a healthcare provider's National Provider Identifier (NPI) to designate legacy Medicare provider numbers.
Y9730001 Other
Identifier 15/19
Issuer: Carefirst
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
0001 Other
Identifier 16/19
Issuer: Bcbs
Other: An additional provider identifier that does not correspond to any of the other defined identifier type categories.
E50625 Medicare UPIN
Identifier 17/19
Medicare UPIN (Unique Physician Identification Number): A legacy six-character alphanumeric identifier previously issued by Medicare to individual physicians before being retired and replaced by the NPI system.
200865YHNP Medicare PIN
Identifier 18/19
Medicare PIN: Used in legacy data fields alongside a healthcare provider's National Provider Identifier (NPI) to designate legacy Medicare provider numbers.
200865 Medicare PIN
Identifier 19/19
State: MD
Medicare PIN: Used in legacy data fields alongside a healthcare provider's National Provider Identifier (NPI) to designate legacy Medicare provider numbers.
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