Dr. Mary Grace S. Tanguilan, MD
- Medicare services, 2024
- 4,381
- Medicare patients, 2024
- 710
- Part D claims, 2024
- 10,361
- Hospital affiliations
- 1
- Industry payments
- $4,175
- Practice address
- 615 W Macphail Rd, Bel Air, MD 21014
- Practice phone
- Call (443) 643-9900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Baltimore- Harford Surgical Centers
Bel Air, Maryland
Find Dr. Tanguilan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mary Grace S. Tanguilan is an internist in Bel Air, Maryland
Dr. Tanguilan practices at Baltimore- Harford Surgical Centers in Bel Air, Maryland.
Dr. Tanguilan's NPI, 1164853560, was assigned on December 10, 2013. Dr. Tanguilan holds Maryland license D00077329.
- NPI
- 1164853560NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294951091
- NPI enumeration date
- December 10, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (443) 643-9900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mary Grace S. Tanguilan practices at Baltimore- Harford Surgical Centers in Bel Air, Maryland
Dr. Tanguilan's primary practice is Baltimore- Harford Surgical Centers, at 615 W Macphail Rd, Bel Air, MD 21014 in Harford County. The practice phone is (443) 643-9900.
- Baltimore- Harford Surgical Centers615 W Macphail Rd, Bel Air, MD 21014 · Harford CountyPhone(443) 643-9900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mary Grace S. Tanguilan is affiliated with 6 sites of care and 2 medical groups
Dr. Tanguilan's primary practice is Baltimore- Harford Surgical Centers in Bel Air, Maryland. Dr. Tanguilan is also affiliated with University of Maryland Upper Chesapeake Medical Center Bel Air. The medical group on file is Agape Physical Therapy. Dmand AI also links Dr. Tanguilan to 2 more group practices and clinics, 2 home health agencies and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mary Grace S. Tanguilan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tanguilan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baltimore- Harford Surgical Centers | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mary Grace S. Tanguilan is one of 3,320 internists in Maryland
Internal medicine is Dr. Tanguilan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tanguilan is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Dr. Tanguilan
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mary Grace S. Tanguilan billed Medicare for 4,381 services in 2024
CMS data shows 4,381 Medicare services from Dr. Tanguilan across 26 procedure codes in 2024, for 710 Medicare patients. Medicare paid $198,211 for them. Every service was in an office.
Dr. Tanguilan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,8112024: 1,8532%
- Other services
- 2023: 4762024: 1,293172%
- Lab and pathology
- 2023: 3,3022024: 1,07867%
- Tests and treatments
- 2023: 1812024: 15713%
- Surgery
- 2023: 1762024: 0100%
Dr. Tanguilan compared with the Maryland median for internists, 2024
- Dr. Tanguilan
- Maryland median
- Medicare services
- 4,381vs 6566.7 times
- Medicare patients
- 710vs 2512.8 times
- Part D claims
- 9,553vs 30930.9 times
Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.
Dr. Tanguilan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Tanguilan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tanguilan and other internists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mary Grace S. Tanguilan treated 710 Medicare patients in 2024, average age 74
CMS counts 710 Medicare patients who saw Dr. Tanguilan in 2024. The largest group is 65 to 74, with 321 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 0.98, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tanguilan's median patient age at 66, with 74% women.
Dr. Tanguilan's Medicare patients by age, 2024
Dr. Tanguilan's Medicare patients by sex, 2024
- Women53876%
- Men17224%
Chronic conditions among Dr. Tanguilan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Anxiety36%
- Diabetes30%
- Mood disorders30%
- Depression28%
- Ischemic heart disease26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tanguilan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women74%
- Men25%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mary Grace S. Tanguilan wrote 10,361 Medicare Part D claims in 2024
In 2024, Dr. Tanguilan wrote 10,361 Medicare Part D claims for 1,093 patients. 89% of them were for generic drugs. CMS names the drug for 9,553 of them, across 144 drugs with 11 or more claims each, at $651,542 in total drug cost. In 2023, CMS named 7,378 claims across 124 drugs.
Dr. Tanguilan's Part D claims by kind of drug, 2024
- Generic9,242 claims89%
- Brand-name1,082 claims10%
- Other37 claims0%
Dr. Tanguilan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Tanguilan's Part D claims, 2024
- Opioids1%93 of 10,361 claims
- Antibiotics5%488 of 10,361 claims
- Antipsychotics, patients 65 and over0%14 of 10,361 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7,3782024: 9,55329%
Drugs named by CMS: 144 in 2024, 124 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mary Grace S. Tanguilan offers telehealth to Medicare patients
Dr. Tanguilan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tanguilan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mary Grace S. Tanguilan received $4,175 in industry payments from 2016 to 2025
CMS Open Payments shows 226 general payments to Dr. Tanguilan from 29 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Novo Nordisk Inc paid the most, $721.
General payments to Dr. Tanguilan by program year, 2016 to 2025
General payments to Dr. Tanguilan by kind, 2016 to 2025
- Food and beverage$4,07598%
- Education$1002%
Companies that paid Dr. Tanguilan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mary Grace S. Tanguilan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mary Grace S. Tanguilan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mary Grace S. Tanguilan's NPI number?
Dr. Mary Grace S. Tanguilan's NPI number is 1164853560. It was assigned on December 10, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Mary Grace S. Tanguilan?
Dr. Mary Grace S. Tanguilan is an internist in Bel Air, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mary Grace S. Tanguilan practice?
Dr. Tanguilan practices at 615 W Macphail Rd, Bel Air, MD 21014. Dr. Tanguilan's primary practice is Baltimore- Harford Surgical Centers in Bel Air, Maryland. Dmand AI also links Dr. Tanguilan to 2 group practices and clinics, 2 home health agencies and 1 medical group.
What is Dr. Mary Grace S. Tanguilan's office phone number?
The practice phone on file for Dr. Tanguilan is (443) 643-9900.
What is Dr. Mary Grace S. Tanguilan's medical license number?
Dr. Tanguilan holds Maryland license D00077329.
Which hospitals is Dr. Mary Grace S. Tanguilan affiliated with?
Dr. Tanguilan is affiliated with University of Maryland Upper Chesapeake Medical Center Bel Air.
What medical group is Dr. Mary Grace S. Tanguilan part of?
Dr. Tanguilan is linked to Agape Physical Therapy. Dmand AI links Dr. Tanguilan to 1 more medical group.
Does Dr. Mary Grace S. Tanguilan accept Medicare?
Yes. CMS data shows Dr. Tanguilan billed Medicare for 4,381 services in 2024, and Dr. Tanguilan accepts Medicare assignment.
Does Dr. Mary Grace S. Tanguilan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tanguilan as offering telehealth services.
How many Medicare patients does Dr. Mary Grace S. Tanguilan see?
CMS counts 710 Medicare patients who saw Dr. Tanguilan in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Mary Grace S. Tanguilan bill to Medicare?
In 2024, Dr. Tanguilan's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and medicare service (G0439).
What drugs does Dr. Mary Grace S. Tanguilan prescribe most?
In 2024 Medicare Part D data, Dr. Tanguilan's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Mary Grace S. Tanguilan received payments from drug or device companies?
CMS Open Payments shows $4,175 in general payments to Dr. Tanguilan from 29 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Mary Grace S. Tanguilan been practicing?
Dr. Tanguilan graduated from medical school in 2008, 18 years ago.
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